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Finding the Fourth Proportional to 129,658.88, 194,471.04 and 36,174.08

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Solution

The fourth proportional to 129,658.88, 194,471.04 and 36,174.08 is: 54,256.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,658.88 : 194,471.04 = 36,174.08 : x
  2. Step 2: Convert to fraction form
    129,658.88/194,471.04 = 36,174.08/x
  3. Step 3: Cross multiply
    129,658.88x = 194,471.04 × 36,174.08
  4. Step 4: Simplify right side
    129,658.88x = 7,034,810,958.64
  5. Step 5: Solve for x
    x = 7,034,810,958.64/129,658.88
  6. Step 6: Final answer
    x = 54,256.30

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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.