Question 772891
More information needed.
Is this geometric sequence or arithmetic sequence?  Some other kind?


Trying for arithmetic sequence, and first term = 4,
{{{4+(n-1)*d=108}}} if {{{n=5}}},
{{{4+(5-1)*d=108}}}
{{{4(1+d)=108}}}
{{{1+d=108/4}}}
{{{1+d=27}}}
{{{d=26}}}


The general term seems to be {{{highlight(4+(n-1)*26)}}} and you can use this to find for when n=6.