Home / 231,141.48-318,951.78-130,520.04

Finding the Fourth Proportional to 231,141.48, 318,951.78 and 130,520.04

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Solution

The fourth proportional to 231,141.48, 318,951.78 and 130,520.04 is: 180,104.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,141.48 : 318,951.78 = 130,520.04 : x
  2. Step 2: Convert to fraction form
    231,141.48/318,951.78 = 130,520.04/x
  3. Step 3: Cross multiply
    231,141.48x = 318,951.78 × 130,520.04
  4. Step 4: Simplify right side
    231,141.48x = 41,629,599,083.67
  5. Step 5: Solve for x
    x = 41,629,599,083.67/231,141.48
  6. Step 6: Final answer
    x = 180,104.41

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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.