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Finding the Fourth Proportional to 129,867.18, 194,808.18 and 36,380.22

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Solution

The fourth proportional to 129,867.18, 194,808.18 and 36,380.22 is: 54,572.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,867.18 : 194,808.18 = 36,380.22 : x
  2. Step 2: Convert to fraction form
    129,867.18/194,808.18 = 36,380.22/x
  3. Step 3: Cross multiply
    129,867.18x = 194,808.18 × 36,380.22
  4. Step 4: Simplify right side
    129,867.18x = 7,087,164,446.20
  5. Step 5: Solve for x
    x = 7,087,164,446.20/129,867.18
  6. Step 6: Final answer
    x = 54,572.41

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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.