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Finding the Fourth Proportional to 135,573.10, 187,102.08 and 75,162.70

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Solution

The fourth proportional to 135,573.10, 187,102.08 and 75,162.70 is: 103,730.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,573.10 : 187,102.08 = 75,162.70 : x
  2. Step 2: Convert to fraction form
    135,573.10/187,102.08 = 75,162.70/x
  3. Step 3: Cross multiply
    135,573.10x = 187,102.08 × 75,162.70
  4. Step 4: Simplify right side
    135,573.10x = 14,063,096,572.91
  5. Step 5: Solve for x
    x = 14,063,096,572.91/135,573.10
  6. Step 6: Final answer
    x = 103,730.73

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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.