Home / 178,836.80-268,253.40-72,218.96

Finding the Fourth Proportional to 178,836.80, 268,253.40 and 72,218.96

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Solution

The fourth proportional to 178,836.80, 268,253.40 and 72,218.96 is: 108,327.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,836.80 : 268,253.40 = 72,218.96 : x
  2. Step 2: Convert to fraction form
    178,836.80/268,253.40 = 72,218.96/x
  3. Step 3: Cross multiply
    178,836.80x = 268,253.40 × 72,218.96
  4. Step 4: Simplify right side
    178,836.80x = 19,372,981,564.46
  5. Step 5: Solve for x
    x = 19,372,981,564.46/178,836.80
  6. Step 6: Final answer
    x = 108,327.71

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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.