Home / 231,022.56-318,815.04-129,056.96

Finding the Fourth Proportional to 231,022.56, 318,815.04 and 129,056.96

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Solution

The fourth proportional to 231,022.56, 318,815.04 and 129,056.96 is: 178,100.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,022.56 : 318,815.04 = 129,056.96 : x
  2. Step 2: Convert to fraction form
    231,022.56/318,815.04 = 129,056.96/x
  3. Step 3: Cross multiply
    231,022.56x = 318,815.04 × 129,056.96
  4. Step 4: Simplify right side
    231,022.56x = 41,145,299,864.68
  5. Step 5: Solve for x
    x = 41,145,299,864.68/231,022.56
  6. Step 6: Final answer
    x = 178,100.79

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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.