Finding the Fourth Proportional to 129,251.21, 193,876.88 and 59,081.31
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Solution
The fourth proportional to 129,251.21, 193,876.88 and 59,081.31 is: 88,621.99
Step by Step Solution
- Step 1: Write the proportion equation
129,251.21 : 193,876.88 = 59,081.31 : x - Step 2: Convert to fraction form
129,251.21/193,876.88 = 59,081.31/x - Step 3: Cross multiply
129,251.21x = 193,876.88 × 59,081.31 - Step 4: Simplify right side
129,251.21x = 11,454,500,049.11 - Step 5: Solve for x
x = 11,454,500,049.11/129,251.21 - Step 6: Final answer
x = 88,621.99
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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.