Nationwide to pass on interest rate rise to mortgage customersAccording to the Bank of England, 43% of homeowners are on variable mortgage rates and 57% are on fixed rate mortgages. This was confirmed by Henry Prior to us on Twitter which means 43% of homeowners are probably unhappy with the recent interest riseAlthough the increase was by 0.25% many across the UK will feel it in their pockets. With the cost of living increasing and salaries staying the same this is bad news for many. But what does this mean for the property market?Nationwide recently confirmed they are to pass on interest rate hikes to their 600,000 mortgage customers. They have opened the door for other lenders to follow (not that they needed an excuse) Brian Murphy, head of lending at the broker Mortgage Advice Bureau, said: "The announcement by Nationwide today, who are one of the UK's biggest mortgage lenders, isn't a surprise and is highly likely to be the route that other banks and building societies will follow when it comes to repricing their products in the event that a rate rise does occur."It's thought there are as many as 5 million people in the UK with variable mortgage rates.The last time interest rates rose when back in July 2007 when rates increased to 5.75%. It's currently hard to image a time when this will happen again but surely it has to and more at some point in the near future for economic balance?