Home / 80,132.94-120,207.72-30,255.06

Finding the Fourth Proportional to 80,132.94, 120,207.72 and 30,255.06

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Solution

The fourth proportional to 80,132.94, 120,207.72 and 30,255.06 is: 45,385.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,132.94 : 120,207.72 = 30,255.06 : x
  2. Step 2: Convert to fraction form
    80,132.94/120,207.72 = 30,255.06/x
  3. Step 3: Cross multiply
    80,132.94x = 120,207.72 × 30,255.06
  4. Step 4: Simplify right side
    80,132.94x = 3,636,891,781.06
  5. Step 5: Solve for x
    x = 3,636,891,781.06/80,132.94
  6. Step 6: Final answer
    x = 45,385.73

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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.