Finding the Fourth Proportional to 134,528.25, 185,648.99 and 77,972.43
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Solution
The fourth proportional to 134,528.25, 185,648.99 and 77,972.43 is: 107,601.95
Step by Step Solution
- Step 1: Write the proportion equation
134,528.25 : 185,648.99 = 77,972.43 : x - Step 2: Convert to fraction form
134,528.25/185,648.99 = 77,972.43/x - Step 3: Cross multiply
134,528.25x = 185,648.99 × 77,972.43 - Step 4: Simplify right side
134,528.25x = 14,475,502,487.48 - Step 5: Solve for x
x = 14,475,502,487.48/134,528.25 - Step 6: Final answer
x = 107,601.95
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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.