Home / 87,758.10-131,637.15-72,995.85

Finding the Fourth Proportional to 87,758.10, 131,637.15 and 72,995.85

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Solution

The fourth proportional to 87,758.10, 131,637.15 and 72,995.85 is: 109,493.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,758.10 : 131,637.15 = 72,995.85 : x
  2. Step 2: Convert to fraction form
    87,758.10/131,637.15 = 72,995.85/x
  3. Step 3: Cross multiply
    87,758.10x = 131,637.15 × 72,995.85
  4. Step 4: Simplify right side
    87,758.10x = 9,608,965,655.83
  5. Step 5: Solve for x
    x = 9,608,965,655.83/87,758.10
  6. Step 6: Final answer
    x = 109,493.78

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1.5x scale

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.