Home / 178,789.92-268,295.62-103,945.28

Finding the Fourth Proportional to 178,789.92, 268,295.62 and 103,945.28

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Solution

The fourth proportional to 178,789.92, 268,295.62 and 103,945.28 is: 155,982.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,789.92 : 268,295.62 = 103,945.28 : x
  2. Step 2: Convert to fraction form
    178,789.92/268,295.62 = 103,945.28/x
  3. Step 3: Cross multiply
    178,789.92x = 268,295.62 × 103,945.28
  4. Step 4: Simplify right side
    178,789.92x = 27,888,063,343.67
  5. Step 5: Solve for x
    x = 27,888,063,343.67/178,789.92
  6. Step 6: Final answer
    x = 155,982.30

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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.