Home / 87,646.16-131,469.24-80,042.96

Finding the Fourth Proportional to 87,646.16, 131,469.24 and 80,042.96

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Solution

The fourth proportional to 87,646.16, 131,469.24 and 80,042.96 is: 120,064.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,646.16 : 131,469.24 = 80,042.96 : x
  2. Step 2: Convert to fraction form
    87,646.16/131,469.24 = 80,042.96/x
  3. Step 3: Cross multiply
    87,646.16x = 131,469.24 × 80,042.96
  4. Step 4: Simplify right side
    87,646.16x = 10,523,187,118.55
  5. Step 5: Solve for x
    x = 10,523,187,118.55/87,646.16
  6. Step 6: Final answer
    x = 120,064.44

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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.