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Finding the Fourth Proportional to 125,227.69, 172,814.24 and 68,642.71

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Solution

The fourth proportional to 125,227.69, 172,814.24 and 68,642.71 is: 94,726.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,227.69 : 172,814.24 = 68,642.71 : x
  2. Step 2: Convert to fraction form
    125,227.69/172,814.24 = 68,642.71/x
  3. Step 3: Cross multiply
    125,227.69x = 172,814.24 × 68,642.71
  4. Step 4: Simplify right side
    125,227.69x = 11,862,437,499.76
  5. Step 5: Solve for x
    x = 11,862,437,499.76/125,227.69
  6. Step 6: Final answer
    x = 94,726.95

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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.