Home / 157,789.78-236,802.22-115,778.42

Finding the Fourth Proportional to 157,789.78, 236,802.22 and 115,778.42

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Solution

The fourth proportional to 157,789.78, 236,802.22 and 115,778.42 is: 173,753.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,789.78 : 236,802.22 = 115,778.42 : x
  2. Step 2: Convert to fraction form
    157,789.78/236,802.22 = 115,778.42/x
  3. Step 3: Cross multiply
    157,789.78x = 236,802.22 × 115,778.42
  4. Step 4: Simplify right side
    157,789.78x = 27,416,586,884.09
  5. Step 5: Solve for x
    x = 27,416,586,884.09/157,789.78
  6. Step 6: Final answer
    x = 173,753.88

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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.