Home / 391,921.32-587,845.53-107,601.60

Finding the Fourth Proportional to 391,921.32, 587,845.53 and 107,601.60

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Solution

The fourth proportional to 391,921.32, 587,845.53 and 107,601.60 is: 161,392.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,921.32 : 587,845.53 = 107,601.60 : x
  2. Step 2: Convert to fraction form
    391,921.32/587,845.53 = 107,601.60/x
  3. Step 3: Cross multiply
    391,921.32x = 587,845.53 × 107,601.60
  4. Step 4: Simplify right side
    391,921.32x = 63,253,119,580.85
  5. Step 5: Solve for x
    x = 63,253,119,580.85/391,921.32
  6. Step 6: Final answer
    x = 161,392.39

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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.