Home / 107,711.43-148,545.02-67,428.87

Finding the Fourth Proportional to 107,711.43, 148,545.02 and 67,428.87

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Solution

The fourth proportional to 107,711.43, 148,545.02 and 67,428.87 is: 92,991.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,711.43 : 148,545.02 = 67,428.87 : x
  2. Step 2: Convert to fraction form
    107,711.43/148,545.02 = 67,428.87/x
  3. Step 3: Cross multiply
    107,711.43x = 148,545.02 × 67,428.87
  4. Step 4: Simplify right side
    107,711.43x = 10,016,222,505.58
  5. Step 5: Solve for x
    x = 10,016,222,505.58/107,711.43
  6. Step 6: Final answer
    x = 92,991.27

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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.