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Finding the Fourth Proportional to 129,806.88, 194,734.35 and 41,082.72

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Solution

The fourth proportional to 129,806.88, 194,734.35 and 41,082.72 is: 61,631.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,806.88 : 194,734.35 = 41,082.72 : x
  2. Step 2: Convert to fraction form
    129,806.88/194,734.35 = 41,082.72/x
  3. Step 3: Cross multiply
    129,806.88x = 194,734.35 × 41,082.72
  4. Step 4: Simplify right side
    129,806.88x = 8,000,216,775.43
  5. Step 5: Solve for x
    x = 8,000,216,775.43/129,806.88
  6. Step 6: Final answer
    x = 61,631.69

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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.