Home / 99,380.89-149,119.16-49,465.35

Finding the Fourth Proportional to 99,380.89, 149,119.16 and 49,465.35

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Solution

The fourth proportional to 99,380.89, 149,119.16 and 49,465.35 is: 74,221.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,380.89 : 149,119.16 = 49,465.35 : x
  2. Step 2: Convert to fraction form
    99,380.89/149,119.16 = 49,465.35/x
  3. Step 3: Cross multiply
    99,380.89x = 149,119.16 × 49,465.35
  4. Step 4: Simplify right side
    99,380.89x = 7,376,231,472.02
  5. Step 5: Solve for x
    x = 7,376,231,472.02/99,380.89
  6. Step 6: Final answer
    x = 74,221.83

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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.