Home / 231,919.13-347,928.35-71,991.56

Finding the Fourth Proportional to 231,919.13, 347,928.35 and 71,991.56

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Solution

The fourth proportional to 231,919.13, 347,928.35 and 71,991.56 is: 108,002.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,919.13 : 347,928.35 = 71,991.56 : x
  2. Step 2: Convert to fraction form
    231,919.13/347,928.35 = 71,991.56/x
  3. Step 3: Cross multiply
    231,919.13x = 347,928.35 × 71,991.56
  4. Step 4: Simplify right side
    231,919.13x = 25,047,904,684.73
  5. Step 5: Solve for x
    x = 25,047,904,684.73/231,919.13
  6. Step 6: Final answer
    x = 108,002.75

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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.