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Finding the Fourth Proportional to 87,233.80, 130,850.70 and 80,753.80

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Solution

The fourth proportional to 87,233.80, 130,850.70 and 80,753.80 is: 121,130.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,233.80 : 130,850.70 = 80,753.80 : x
  2. Step 2: Convert to fraction form
    87,233.80/130,850.70 = 80,753.80/x
  3. Step 3: Cross multiply
    87,233.80x = 130,850.70 × 80,753.80
  4. Step 4: Simplify right side
    87,233.80x = 10,566,691,257.66
  5. Step 5: Solve for x
    x = 10,566,691,257.66/87,233.80
  6. Step 6: Final answer
    x = 121,130.70

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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.