Finding the Fourth Proportional to 129,151.35, 193,034.55 and 116,472.21
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Solution
The fourth proportional to 129,151.35, 193,034.55 and 116,472.21 is: 174,083.82
Step by Step Solution
- Step 1: Write the proportion equation
129,151.35 : 193,034.55 = 116,472.21 : x - Step 2: Convert to fraction form
129,151.35/193,034.55 = 116,472.21/x - Step 3: Cross multiply
129,151.35x = 193,034.55 × 116,472.21 - Step 4: Simplify right side
129,151.35x = 22,483,160,644.86 - Step 5: Solve for x
x = 22,483,160,644.86/129,151.35 - Step 6: Final answer
x = 174,083.82
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.