List of top Quantitative Aptitude Questions on Geometric Progression

What is the geometric mean of the sequence \( 1, 3, 9, 27, 81, \ldots 3^{n} \)?
The first two terms of a geometric progression add up to \(12\). The sum of the third and fourth terms is \(48\). If the terms of the progression are alternately positive and negative, the first term is
What is the geometric mean of the sequence 1, 3, 9, 27, 81,... 3n?
In ΔPQR, \(∠P\), \(∠Q\) and \(∠R\) are in geometric progression in the same order. \(∠Q\) = \(60°\). What is the perimeter of the triangle if the height of the triangle is \(6\) cm