Finding the Fourth Proportional to 121,542.84, 182,251.08 and 54,951.12
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Solution
The fourth proportional to 121,542.84, 182,251.08 and 54,951.12 is: 82,398.12
Step by Step Solution
- Step 1: Write the proportion equation
121,542.84 : 182,251.08 = 54,951.12 : x - Step 2: Convert to fraction form
121,542.84/182,251.08 = 54,951.12/x - Step 3: Cross multiply
121,542.84x = 182,251.08 × 54,951.12 - Step 4: Simplify right side
121,542.84x = 10,014,900,967.21 - Step 5: Solve for x
x = 10,014,900,967.21/121,542.84 - Step 6: Final answer
x = 82,398.12
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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.