Home / 144,046.89-198,755.04-82,781.28

Finding the Fourth Proportional to 144,046.89, 198,755.04 and 82,781.28

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Solution

The fourth proportional to 144,046.89, 198,755.04 and 82,781.28 is: 114,221.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,046.89 : 198,755.04 = 82,781.28 : x
  2. Step 2: Convert to fraction form
    144,046.89/198,755.04 = 82,781.28/x
  3. Step 3: Cross multiply
    144,046.89x = 198,755.04 × 82,781.28
  4. Step 4: Simplify right side
    144,046.89x = 16,453,196,617.65
  5. Step 5: Solve for x
    x = 16,453,196,617.65/144,046.89
  6. Step 6: Final answer
    x = 114,221.12

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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.