Home / 87,835.88-131,753.57-67,874.42

Finding the Fourth Proportional to 87,835.88, 131,753.57 and 67,874.42

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Solution

The fourth proportional to 87,835.88, 131,753.57 and 67,874.42 is: 101,811.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,835.88 : 131,753.57 = 67,874.42 : x
  2. Step 2: Convert to fraction form
    87,835.88/131,753.57 = 67,874.42/x
  3. Step 3: Cross multiply
    87,835.88x = 131,753.57 × 67,874.42
  4. Step 4: Simplify right side
    87,835.88x = 8,942,696,148.54
  5. Step 5: Solve for x
    x = 8,942,696,148.54/87,835.88
  6. Step 6: Final answer
    x = 101,811.43

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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.