Home / 238,540.85-329,187.09-131,121.89

Finding the Fourth Proportional to 238,540.85, 329,187.09 and 131,121.89

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Solution

The fourth proportional to 238,540.85, 329,187.09 and 131,121.89 is: 180,948.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,540.85 : 329,187.09 = 131,121.89 : x
  2. Step 2: Convert to fraction form
    238,540.85/329,187.09 = 131,121.89/x
  3. Step 3: Cross multiply
    238,540.85x = 329,187.09 × 131,121.89
  4. Step 4: Simplify right side
    238,540.85x = 43,163,633,404.40
  5. Step 5: Solve for x
    x = 43,163,633,404.40/238,540.85
  6. Step 6: Final answer
    x = 180,948.60

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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.