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Finding the Fourth Proportional to 135,761.55, 187,352.22 and 75,337.80

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Solution

The fourth proportional to 135,761.55, 187,352.22 and 75,337.80 is: 103,966.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,761.55 : 187,352.22 = 75,337.80 : x
  2. Step 2: Convert to fraction form
    135,761.55/187,352.22 = 75,337.80/x
  3. Step 3: Cross multiply
    135,761.55x = 187,352.22 × 75,337.80
  4. Step 4: Simplify right side
    135,761.55x = 14,114,703,891.57
  5. Step 5: Solve for x
    x = 14,114,703,891.57/135,761.55
  6. Step 6: Final answer
    x = 103,966.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.