Home / 231,022.46-318,801.66-129,046.29

Finding the Fourth Proportional to 231,022.46, 318,801.66 and 129,046.29

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Solution

The fourth proportional to 231,022.46, 318,801.66 and 129,046.29 is: 178,078.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,022.46 : 318,801.66 = 129,046.29 : x
  2. Step 2: Convert to fraction form
    231,022.46/318,801.66 = 129,046.29/x
  3. Step 3: Cross multiply
    231,022.46x = 318,801.66 × 129,046.29
  4. Step 4: Simplify right side
    231,022.46x = 41,140,171,468.84
  5. Step 5: Solve for x
    x = 41,140,171,468.84/231,022.46
  6. Step 6: Final answer
    x = 178,078.67

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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.