Home / 217,139.27-325,755.68-67,376.61

Finding the Fourth Proportional to 217,139.27, 325,755.68 and 67,376.61

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Solution

The fourth proportional to 217,139.27, 325,755.68 and 67,376.61 is: 101,079.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,139.27 : 325,755.68 = 67,376.61 : x
  2. Step 2: Convert to fraction form
    217,139.27/325,755.68 = 67,376.61/x
  3. Step 3: Cross multiply
    217,139.27x = 325,755.68 × 67,376.61
  4. Step 4: Simplify right side
    217,139.27x = 21,948,313,069.76
  5. Step 5: Solve for x
    x = 21,948,313,069.76/217,139.27
  6. Step 6: Final answer
    x = 101,079.43

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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.