Home / 129,742.30-194,613.45-36,247.90

Finding the Fourth Proportional to 129,742.30, 194,613.45 and 36,247.90

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Solution

The fourth proportional to 129,742.30, 194,613.45 and 36,247.90 is: 54,371.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,742.30 : 194,613.45 = 36,247.90 : x
  2. Step 2: Convert to fraction form
    129,742.30/194,613.45 = 36,247.90/x
  3. Step 3: Cross multiply
    129,742.30x = 194,613.45 × 36,247.90
  4. Step 4: Simplify right side
    129,742.30x = 7,054,328,874.26
  5. Step 5: Solve for x
    x = 7,054,328,874.26/129,742.30
  6. Step 6: Final answer
    x = 54,371.85

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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.