Home / 99,911.20-149,737.61-74,753.86

Finding the Fourth Proportional to 99,911.20, 149,737.61 and 74,753.86

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Solution

The fourth proportional to 99,911.20, 149,737.61 and 74,753.86 is: 112,034.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,911.20 : 149,737.61 = 74,753.86 : x
  2. Step 2: Convert to fraction form
    99,911.20/149,737.61 = 74,753.86/x
  3. Step 3: Cross multiply
    99,911.20x = 149,737.61 × 74,753.86
  4. Step 4: Simplify right side
    99,911.20x = 11,193,464,334.67
  5. Step 5: Solve for x
    x = 11,193,464,334.67/99,911.20
  6. Step 6: Final answer
    x = 112,034.13

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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.