Home / 99,887.11-137,847.18-54,565.85

Finding the Fourth Proportional to 99,887.11, 137,847.18 and 54,565.85

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Solution

The fourth proportional to 99,887.11, 137,847.18 and 54,565.85 is: 75,302.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,887.11 : 137,847.18 = 54,565.85 : x
  2. Step 2: Convert to fraction form
    99,887.11/137,847.18 = 54,565.85/x
  3. Step 3: Cross multiply
    99,887.11x = 137,847.18 × 54,565.85
  4. Step 4: Simplify right side
    99,887.11x = 7,521,747,993.53
  5. Step 5: Solve for x
    x = 7,521,747,993.53/99,887.11
  6. Step 6: Final answer
    x = 75,302.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.