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Finding the Fourth Proportional to 174,500.80, 261,799.80 and 85,757.20

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Solution

The fourth proportional to 174,500.80, 261,799.80 and 85,757.20 is: 128,659.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,500.80 : 261,799.80 = 85,757.20 : x
  2. Step 2: Convert to fraction form
    174,500.80/261,799.80 = 85,757.20/x
  3. Step 3: Cross multiply
    174,500.80x = 261,799.80 × 85,757.20
  4. Step 4: Simplify right side
    174,500.80x = 22,451,217,808.56
  5. Step 5: Solve for x
    x = 22,451,217,808.56/174,500.80
  6. Step 6: Final answer
    x = 128,659.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.