Home / 99,311.32-148,966.38-43,144.12

Finding the Fourth Proportional to 99,311.32, 148,966.38 and 43,144.12

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Solution

The fourth proportional to 99,311.32, 148,966.38 and 43,144.12 is: 64,715.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,311.32 : 148,966.38 = 43,144.12 : x
  2. Step 2: Convert to fraction form
    99,311.32/148,966.38 = 43,144.12/x
  3. Step 3: Cross multiply
    99,311.32x = 148,966.38 × 43,144.12
  4. Step 4: Simplify right side
    99,311.32x = 6,427,023,374.69
  5. Step 5: Solve for x
    x = 6,427,023,374.69/99,311.32
  6. Step 6: Final answer
    x = 64,715.92

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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.