Home / 99,867.20-149,606.40-55,414.40

Finding the Fourth Proportional to 99,867.20, 149,606.40 and 55,414.40

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Solution

The fourth proportional to 99,867.20, 149,606.40 and 55,414.40 is: 83,013.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,867.20 : 149,606.40 = 55,414.40 : x
  2. Step 2: Convert to fraction form
    99,867.20/149,606.40 = 55,414.40/x
  3. Step 3: Cross multiply
    99,867.20x = 149,606.40 × 55,414.40
  4. Step 4: Simplify right side
    99,867.20x = 8,290,348,892.16
  5. Step 5: Solve for x
    x = 8,290,348,892.16/99,867.20
  6. Step 6: Final answer
    x = 83,013.73

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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.