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Finding the Fourth Proportional to 104,344.38, 143,992.35 and 61,902

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Solution

The fourth proportional to 104,344.38, 143,992.35 and 61,902 is: 85,423.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,344.38 : 143,992.35 = 61,902 : x
  2. Step 2: Convert to fraction form
    104,344.38/143,992.35 = 61,902/x
  3. Step 3: Cross multiply
    104,344.38x = 143,992.35 × 61,902
  4. Step 4: Simplify right side
    104,344.38x = 8,913,414,449.70
  5. Step 5: Solve for x
    x = 8,913,414,449.70/104,344.38
  6. Step 6: Final answer
    x = 85,423.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.