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Finding the Fourth Proportional to 135,657.74, 187,204.20 and 75,227.42

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Solution

The fourth proportional to 135,657.74, 187,204.20 and 75,227.42 is: 103,811.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,657.74 : 187,204.20 = 75,227.42 : x
  2. Step 2: Convert to fraction form
    135,657.74/187,204.20 = 75,227.42/x
  3. Step 3: Cross multiply
    135,657.74x = 187,204.20 × 75,227.42
  4. Step 4: Simplify right side
    135,657.74x = 14,082,888,979.16
  5. Step 5: Solve for x
    x = 14,082,888,979.16/135,657.74
  6. Step 6: Final answer
    x = 103,811.91

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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.