Home / 80,132.39-120,195.25-20,966.75

Finding the Fourth Proportional to 80,132.39, 120,195.25 and 20,966.75

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Solution

The fourth proportional to 80,132.39, 120,195.25 and 20,966.75 is: 31,449.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,132.39 : 120,195.25 = 20,966.75 : x
  2. Step 2: Convert to fraction form
    80,132.39/120,195.25 = 20,966.75/x
  3. Step 3: Cross multiply
    80,132.39x = 120,195.25 × 20,966.75
  4. Step 4: Simplify right side
    80,132.39x = 2,520,104,231.37
  5. Step 5: Solve for x
    x = 2,520,104,231.37/80,132.39
  6. Step 6: Final answer
    x = 31,449.26

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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.