Home / 391,836.62-587,755.54-107,531.06

Finding the Fourth Proportional to 391,836.62, 587,755.54 and 107,531.06

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Solution

The fourth proportional to 391,836.62, 587,755.54 and 107,531.06 is: 161,296.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,836.62 : 587,755.54 = 107,531.06 : x
  2. Step 2: Convert to fraction form
    391,836.62/587,755.54 = 107,531.06/x
  3. Step 3: Cross multiply
    391,836.62x = 587,755.54 × 107,531.06
  4. Step 4: Simplify right side
    391,836.62x = 63,201,976,237.07
  5. Step 5: Solve for x
    x = 63,201,976,237.07/391,836.62
  6. Step 6: Final answer
    x = 161,296.76

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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.