Home / 231,227.95-319,087.87-129,253.61

Finding the Fourth Proportional to 231,227.95, 319,087.87 and 129,253.61

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Solution

The fourth proportional to 231,227.95, 319,087.87 and 129,253.61 is: 178,366.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,227.95 : 319,087.87 = 129,253.61 : x
  2. Step 2: Convert to fraction form
    231,227.95/319,087.87 = 129,253.61/x
  3. Step 3: Cross multiply
    231,227.95x = 319,087.87 × 129,253.61
  4. Step 4: Simplify right side
    231,227.95x = 41,243,259,104.71
  5. Step 5: Solve for x
    x = 41,243,259,104.71/231,227.95
  6. Step 6: Final answer
    x = 178,366.24

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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.