Home / 129,968.11-194,508.61-108,931.90

Finding the Fourth Proportional to 129,968.11, 194,508.61 and 108,931.90

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Solution

The fourth proportional to 129,968.11, 194,508.61 and 108,931.90 is: 163,026.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,968.11 : 194,508.61 = 108,931.90 : x
  2. Step 2: Convert to fraction form
    129,968.11/194,508.61 = 108,931.90/x
  3. Step 3: Cross multiply
    129,968.11x = 194,508.61 × 108,931.90
  4. Step 4: Simplify right side
    129,968.11x = 21,188,192,453.66
  5. Step 5: Solve for x
    x = 21,188,192,453.66/129,968.11
  6. Step 6: Final answer
    x = 163,026.09

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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.