Home / 80,198.86-120,173.49-30,251.62

Finding the Fourth Proportional to 80,198.86, 120,173.49 and 30,251.62

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Solution

The fourth proportional to 80,198.86, 120,173.49 and 30,251.62 is: 45,330.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,198.86 : 120,173.49 = 30,251.62 : x
  2. Step 2: Convert to fraction form
    80,198.86/120,173.49 = 30,251.62/x
  3. Step 3: Cross multiply
    80,198.86x = 120,173.49 × 30,251.62
  4. Step 4: Simplify right side
    80,198.86x = 3,635,442,753.55
  5. Step 5: Solve for x
    x = 3,635,442,753.55/80,198.86
  6. Step 6: Final answer
    x = 45,330.35

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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.