Home / 129,818.38-194,654.52-89,339.44

Finding the Fourth Proportional to 129,818.38, 194,654.52 and 89,339.44

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Solution

The fourth proportional to 129,818.38, 194,654.52 and 89,339.44 is: 133,958.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,818.38 : 194,654.52 = 89,339.44 : x
  2. Step 2: Convert to fraction form
    129,818.38/194,654.52 = 89,339.44/x
  3. Step 3: Cross multiply
    129,818.38x = 194,654.52 × 89,339.44
  4. Step 4: Simplify right side
    129,818.38x = 17,390,324,390.30
  5. Step 5: Solve for x
    x = 17,390,324,390.30/129,818.38
  6. Step 6: Final answer
    x = 133,958.88

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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.