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Finding the Fourth Proportional to 80,149.35, 120,179.64 and 32,797.68

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Solution

The fourth proportional to 80,149.35, 120,179.64 and 32,797.68 is: 49,178.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,149.35 : 120,179.64 = 32,797.68 : x
  2. Step 2: Convert to fraction form
    80,149.35/120,179.64 = 32,797.68/x
  3. Step 3: Cross multiply
    80,149.35x = 120,179.64 × 32,797.68
  4. Step 4: Simplify right side
    80,149.35x = 3,941,613,375.24
  5. Step 5: Solve for x
    x = 3,941,613,375.24/80,149.35
  6. Step 6: Final answer
    x = 49,178.36

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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.