Home / 99,872.20-149,613.90-60,311.80

Finding the Fourth Proportional to 99,872.20, 149,613.90 and 60,311.80

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Solution

The fourth proportional to 99,872.20, 149,613.90 and 60,311.80 is: 90,350.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,872.20 : 149,613.90 = 60,311.80 : x
  2. Step 2: Convert to fraction form
    99,872.20/149,613.90 = 60,311.80/x
  3. Step 3: Cross multiply
    99,872.20x = 149,613.90 × 60,311.80
  4. Step 4: Simplify right side
    99,872.20x = 9,023,483,614.02
  5. Step 5: Solve for x
    x = 9,023,483,614.02/99,872.20
  6. Step 6: Final answer
    x = 90,350.30

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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.