Home / 238,086.10-357,142.11-71,869.78

Finding the Fourth Proportional to 238,086.10, 357,142.11 and 71,869.78

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Solution

The fourth proportional to 238,086.10, 357,142.11 and 71,869.78 is: 107,808.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,086.10 : 357,142.11 = 71,869.78 : x
  2. Step 2: Convert to fraction form
    238,086.10/357,142.11 = 71,869.78/x
  3. Step 3: Cross multiply
    238,086.10x = 357,142.11 × 71,869.78
  4. Step 4: Simplify right side
    238,086.10x = 25,667,724,874.44
  5. Step 5: Solve for x
    x = 25,667,724,874.44/238,086.10
  6. Step 6: Final answer
    x = 107,808.58

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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.