Finance and logs- question

[4dkids]

[SIZE="4"]The light is going on!! This is the whole example:

$100,000 = 75,000 x (1+I)[SIZE="1"]4[/SIZE]
$100,000/75,000 = (1+I)[SIZE="1"]4[/SIZE]
1.3333 = (1+I)[SIZE="1"]4[/SIZE]
log 1.3333 = 4 log (1+I)
0.1248 = 4 log (1+I)
0.0312 = log (1+I)
1.075 = 1+I
0.075 = I[/SIZE]

What, then, is the value of log to give the answer in red?

Barcotta, Larry7crys and Gus... [SIZE="5"]thank you[/SIZE]!! I said I would move on to other topics, but I've not stopped looking for the solution.