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Finding the Fourth Proportional to 136,382.67, 188,204.83 and 75,951.97

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Solution

The fourth proportional to 136,382.67, 188,204.83 and 75,951.97 is: 104,811.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,382.67 : 188,204.83 = 75,951.97 : x
  2. Step 2: Convert to fraction form
    136,382.67/188,204.83 = 75,951.97/x
  3. Step 3: Cross multiply
    136,382.67x = 188,204.83 × 75,951.97
  4. Step 4: Simplify right side
    136,382.67x = 14,294,526,941.62
  5. Step 5: Solve for x
    x = 14,294,526,941.62/136,382.67
  6. Step 6: Final answer
    x = 104,811.90

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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.