Finding the Fourth Proportional to 121,965.27, 182,711.18 and 89,886.08
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Solution
The fourth proportional to 121,965.27, 182,711.18 and 89,886.08 is: 134,654.65
Step by Step Solution
- Step 1: Write the proportion equation
121,965.27 : 182,711.18 = 89,886.08 : x - Step 2: Convert to fraction form
121,965.27/182,711.18 = 89,886.08/x - Step 3: Cross multiply
121,965.27x = 182,711.18 × 89,886.08 - Step 4: Simplify right side
121,965.27x = 16,423,191,053.53 - Step 5: Solve for x
x = 16,423,191,053.53/121,965.27 - Step 6: Final answer
x = 134,654.65
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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.