Finding the Fourth Proportional to 121,125.18, 181,754.68 and 50,031.28
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Solution
The fourth proportional to 121,125.18, 181,754.68 and 50,031.28 is: 75,074.56
Step by Step Solution
- Step 1: Write the proportion equation
121,125.18 : 181,754.68 = 50,031.28 : x - Step 2: Convert to fraction form
121,125.18/181,754.68 = 50,031.28/x - Step 3: Cross multiply
121,125.18x = 181,754.68 × 50,031.28 - Step 4: Simplify right side
121,125.18x = 9,093,419,286.39 - Step 5: Solve for x
x = 9,093,419,286.39/121,125.18 - Step 6: Final answer
x = 75,074.56
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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.