Home / 168,856.73-253,285.04-80,061.78

Finding the Fourth Proportional to 168,856.73, 253,285.04 and 80,061.78

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Solution

The fourth proportional to 168,856.73, 253,285.04 and 80,061.78 is: 120,092.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,856.73 : 253,285.04 = 80,061.78 : x
  2. Step 2: Convert to fraction form
    168,856.73/253,285.04 = 80,061.78/x
  3. Step 3: Cross multiply
    168,856.73x = 253,285.04 × 80,061.78
  4. Step 4: Simplify right side
    168,856.73x = 20,278,451,349.93
  5. Step 5: Solve for x
    x = 20,278,451,349.93/168,856.73
  6. Step 6: Final answer
    x = 120,092.65

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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.