[10,000*1.05^N]+[15,000*1.06^N]+[20,000*1.07^N]+[25,000*1.08^N]=100,000, solve for N.

Can't seem to get N accurately. Any help would be appreciated. I thank you.

Guest Mar 5, 2017

#1**0 **

I cannot see any DIRECT solution for N. There maybe a way but I cannot see it. However, using the method of iteration and interpolation, it gives a value for N =5.36064361355.

I have checked it by substituting it into the equation, and it balances the equation to the penny.

Good luck to you.

Guest Mar 5, 2017