Finding the Fourth Proportional to 124,730.84, 187,125.48 and 85,306.52
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Solution
The fourth proportional to 124,730.84, 187,125.48 and 85,306.52 is: 127,979.76
Step by Step Solution
- Step 1: Write the proportion equation
124,730.84 : 187,125.48 = 85,306.52 : x - Step 2: Convert to fraction form
124,730.84/187,125.48 = 85,306.52/x - Step 3: Cross multiply
124,730.84x = 187,125.48 × 85,306.52 - Step 4: Simplify right side
124,730.84x = 15,963,023,502.13 - Step 5: Solve for x
x = 15,963,023,502.13/124,730.84 - Step 6: Final answer
x = 127,979.76
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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.