Home / 278,105.91-417,020.83-88,541.62

Finding the Fourth Proportional to 278,105.91, 417,020.83 and 88,541.62

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Solution

The fourth proportional to 278,105.91, 417,020.83 and 88,541.62 is: 132,768.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,105.91 : 417,020.83 = 88,541.62 : x
  2. Step 2: Convert to fraction form
    278,105.91/417,020.83 = 88,541.62/x
  3. Step 3: Cross multiply
    278,105.91x = 417,020.83 × 88,541.62
  4. Step 4: Simplify right side
    278,105.91x = 36,923,699,861.94
  5. Step 5: Solve for x
    x = 36,923,699,861.94/278,105.91
  6. Step 6: Final answer
    x = 132,768.48

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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.