Finding the Fourth Proportional to 163,538.51, 225,701.84 and 90,948.63
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Solution
The fourth proportional to 163,538.51, 225,701.84 and 90,948.63 is: 125,519.51
Step by Step Solution
- Step 1: Write the proportion equation
163,538.51 : 225,701.84 = 90,948.63 : x - Step 2: Convert to fraction form
163,538.51/225,701.84 = 90,948.63/x - Step 3: Cross multiply
163,538.51x = 225,701.84 × 90,948.63 - Step 4: Simplify right side
163,538.51x = 20,527,273,136.48 - Step 5: Solve for x
x = 20,527,273,136.48/163,538.51 - Step 6: Final answer
x = 125,519.51
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.