Home / 99,520.20-149,061.60-60,008.40

Finding the Fourth Proportional to 99,520.20, 149,061.60 and 60,008.40

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Solution

The fourth proportional to 99,520.20, 149,061.60 and 60,008.40 is: 89,880.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,520.20 : 149,061.60 = 60,008.40 : x
  2. Step 2: Convert to fraction form
    99,520.20/149,061.60 = 60,008.40/x
  3. Step 3: Cross multiply
    99,520.20x = 149,061.60 × 60,008.40
  4. Step 4: Simplify right side
    99,520.20x = 8,944,948,117.44
  5. Step 5: Solve for x
    x = 8,944,948,117.44/99,520.20
  6. Step 6: Final answer
    x = 89,880.73

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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.