Home / 99,868.45-137,817.76-54,546.45

Finding the Fourth Proportional to 99,868.45, 137,817.76 and 54,546.45

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Solution

The fourth proportional to 99,868.45, 137,817.76 and 54,546.45 is: 75,273.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,868.45 : 137,817.76 = 54,546.45 : x
  2. Step 2: Convert to fraction form
    99,868.45/137,817.76 = 54,546.45/x
  3. Step 3: Cross multiply
    99,868.45x = 137,817.76 × 54,546.45
  4. Step 4: Simplify right side
    99,868.45x = 7,517,468,865.86
  5. Step 5: Solve for x
    x = 7,517,468,865.86/99,868.45
  6. Step 6: Final answer
    x = 75,273.71

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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.