Home / 123,280.17-170,126.22-66,691.56

Finding the Fourth Proportional to 123,280.17, 170,126.22 and 66,691.56

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Solution

The fourth proportional to 123,280.17, 170,126.22 and 66,691.56 is: 92,034.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,280.17 : 170,126.22 = 66,691.56 : x
  2. Step 2: Convert to fraction form
    123,280.17/170,126.22 = 66,691.56/x
  3. Step 3: Cross multiply
    123,280.17x = 170,126.22 × 66,691.56
  4. Step 4: Simplify right side
    123,280.17x = 11,345,983,008.70
  5. Step 5: Solve for x
    x = 11,345,983,008.70/123,280.17
  6. Step 6: Final answer
    x = 92,034.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.