Home / 157,861.20-236,584.44-74,778.96

Finding the Fourth Proportional to 157,861.20, 236,584.44 and 74,778.96

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Solution

The fourth proportional to 157,861.20, 236,584.44 and 74,778.96 is: 112,070.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,861.20 : 236,584.44 = 74,778.96 : x
  2. Step 2: Convert to fraction form
    157,861.20/236,584.44 = 74,778.96/x
  3. Step 3: Cross multiply
    157,861.20x = 236,584.44 × 74,778.96
  4. Step 4: Simplify right side
    157,861.20x = 17,691,538,375.38
  5. Step 5: Solve for x
    x = 17,691,538,375.38/157,861.20
  6. Step 6: Final answer
    x = 112,070.21

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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.