Home / 87,834.38-131,751.32-67,872.92

Finding the Fourth Proportional to 87,834.38, 131,751.32 and 67,872.92

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Solution

The fourth proportional to 87,834.38, 131,751.32 and 67,872.92 is: 101,809.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,834.38 : 131,751.32 = 67,872.92 : x
  2. Step 2: Convert to fraction form
    87,834.38/131,751.32 = 67,872.92/x
  3. Step 3: Cross multiply
    87,834.38x = 131,751.32 × 67,872.92
  4. Step 4: Simplify right side
    87,834.38x = 8,942,345,804.13
  5. Step 5: Solve for x
    x = 8,942,345,804.13/87,834.38
  6. Step 6: Final answer
    x = 101,809.18

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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.