Home / 129,966.61-194,506.35-108,930.40

Finding the Fourth Proportional to 129,966.61, 194,506.35 and 108,930.40

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Solution

The fourth proportional to 129,966.61, 194,506.35 and 108,930.40 is: 163,023.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,966.61 : 194,506.35 = 108,930.40 : x
  2. Step 2: Convert to fraction form
    129,966.61/194,506.35 = 108,930.40/x
  3. Step 3: Cross multiply
    129,966.61x = 194,506.35 × 108,930.40
  4. Step 4: Simplify right side
    129,966.61x = 21,187,654,508.04
  5. Step 5: Solve for x
    x = 21,187,654,508.04/129,966.61
  6. Step 6: Final answer
    x = 163,023.83

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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.