If the sales of a new business were $65000 in its first year and $130000 in its fourth year ,find the rate of growth in sales per year......answer is $2166667
The question is not clear when out of context.
Are you working with arithmetic or geometric progression?
"rate of growth" could be an amount (arithmetic) or a ratio (geometric).
Your answer is (almost) correct for linear growth (arithmetic). You only have to put the decimal point to get
$21666.67.