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Finding the Fourth Proportional to 135,572.60, 187,101.39 and 75,162.20

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Solution

The fourth proportional to 135,572.60, 187,101.39 and 75,162.20 is: 103,730.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,572.60 : 187,101.39 = 75,162.20 : x
  2. Step 2: Convert to fraction form
    135,572.60/187,101.39 = 75,162.20/x
  3. Step 3: Cross multiply
    135,572.60x = 187,101.39 × 75,162.20
  4. Step 4: Simplify right side
    135,572.60x = 14,062,951,159.95
  5. Step 5: Solve for x
    x = 14,062,951,159.95/135,572.60
  6. Step 6: Final answer
    x = 103,730.04

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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.