Home / 278,723.08-418,146.92-89,194.83

Finding the Fourth Proportional to 278,723.08, 418,146.92 and 89,194.83

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Solution

The fourth proportional to 278,723.08, 418,146.92 and 89,194.83 is: 133,812.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,723.08 : 418,146.92 = 89,194.83 : x
  2. Step 2: Convert to fraction form
    278,723.08/418,146.92 = 89,194.83/x
  3. Step 3: Cross multiply
    278,723.08x = 418,146.92 × 89,194.83
  4. Step 4: Simplify right side
    278,723.08x = 37,296,544,266.80
  5. Step 5: Solve for x
    x = 37,296,544,266.80/278,723.08
  6. Step 6: Final answer
    x = 133,812.18

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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.