Finding the Fourth Proportional to 121,821.10, 182,725.14 and 38,708.62
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Solution
The fourth proportional to 121,821.10, 182,725.14 and 38,708.62 is: 58,060.86
Step by Step Solution
- Step 1: Write the proportion equation
121,821.10 : 182,725.14 = 38,708.62 : x - Step 2: Convert to fraction form
121,821.10/182,725.14 = 38,708.62/x - Step 3: Cross multiply
121,821.10x = 182,725.14 × 38,708.62 - Step 4: Simplify right side
121,821.10x = 7,073,038,008.71 - Step 5: Solve for x
x = 7,073,038,008.71/121,821.10 - Step 6: Final answer
x = 58,060.86
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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.