Home / 129,967.11-194,507.12-108,930.90

Finding the Fourth Proportional to 129,967.11, 194,507.12 and 108,930.90

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Solution

The fourth proportional to 129,967.11, 194,507.12 and 108,930.90 is: 163,024.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,967.11 : 194,507.12 = 108,930.90 : x
  2. Step 2: Convert to fraction form
    129,967.11/194,507.12 = 108,930.90/x
  3. Step 3: Cross multiply
    129,967.11x = 194,507.12 × 108,930.90
  4. Step 4: Simplify right side
    129,967.11x = 21,187,835,093.35
  5. Step 5: Solve for x
    x = 21,187,835,093.35/129,967.11
  6. Step 6: Final answer
    x = 163,024.59

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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.