Home / 129,868.38-194,822.04-45,613.69

Finding the Fourth Proportional to 129,868.38, 194,822.04 and 45,613.69

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Solution

The fourth proportional to 129,868.38, 194,822.04 and 45,613.69 is: 68,427.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,868.38 : 194,822.04 = 45,613.69 : x
  2. Step 2: Convert to fraction form
    129,868.38/194,822.04 = 45,613.69/x
  3. Step 3: Cross multiply
    129,868.38x = 194,822.04 × 45,613.69
  4. Step 4: Simplify right side
    129,868.38x = 8,886,551,862.49
  5. Step 5: Solve for x
    x = 8,886,551,862.49/129,868.38
  6. Step 6: Final answer
    x = 68,427.37

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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.