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Finding the Fourth Proportional to 168,057.56, 231,600.12 and 120,227.88

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Solution

The fourth proportional to 168,057.56, 231,600.12 and 120,227.88 is: 165,686.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,057.56 : 231,600.12 = 120,227.88 : x
  2. Step 2: Convert to fraction form
    168,057.56/231,600.12 = 120,227.88/x
  3. Step 3: Cross multiply
    168,057.56x = 231,600.12 × 120,227.88
  4. Step 4: Simplify right side
    168,057.56x = 27,844,791,435.35
  5. Step 5: Solve for x
    x = 27,844,791,435.35/168,057.56
  6. Step 6: Final answer
    x = 165,686.04

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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.