Home / 188,972.10-260,781.85-102,930.82

Finding the Fourth Proportional to 188,972.10, 260,781.85 and 102,930.82

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Solution

The fourth proportional to 188,972.10, 260,781.85 and 102,930.82 is: 142,044.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,972.10 : 260,781.85 = 102,930.82 : x
  2. Step 2: Convert to fraction form
    188,972.10/260,781.85 = 102,930.82/x
  3. Step 3: Cross multiply
    188,972.10x = 260,781.85 × 102,930.82
  4. Step 4: Simplify right side
    188,972.10x = 26,842,489,138.33
  5. Step 5: Solve for x
    x = 26,842,489,138.33/188,972.10
  6. Step 6: Final answer
    x = 142,044.72

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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.