Finding the Fourth Proportional to 121,721.67, 182,565.46 and 41,758.31
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Solution
The fourth proportional to 121,721.67, 182,565.46 and 41,758.31 is: 62,631.62
Step by Step Solution
- Step 1: Write the proportion equation
121,721.67 : 182,565.46 = 41,758.31 : x - Step 2: Convert to fraction form
121,721.67/182,565.46 = 41,758.31/x - Step 3: Cross multiply
121,721.67x = 182,565.46 × 41,758.31 - Step 4: Simplify right side
121,721.67x = 7,623,625,073.97 - Step 5: Solve for x
x = 7,623,625,073.97/121,721.67 - Step 6: Final answer
x = 62,631.62
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.