Home / 138,747.60-191,470.98-75,084.84

Finding the Fourth Proportional to 138,747.60, 191,470.98 and 75,084.84

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Solution

The fourth proportional to 138,747.60, 191,470.98 and 75,084.84 is: 103,616.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,747.60 : 191,470.98 = 75,084.84 : x
  2. Step 2: Convert to fraction form
    138,747.60/191,470.98 = 75,084.84/x
  3. Step 3: Cross multiply
    138,747.60x = 191,470.98 × 75,084.84
  4. Step 4: Simplify right side
    138,747.60x = 14,376,567,897.94
  5. Step 5: Solve for x
    x = 14,376,567,897.94/138,747.60
  6. Step 6: Final answer
    x = 103,616.70

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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.