Home / 205,100.11-307,648.34-71,949.17

Finding the Fourth Proportional to 205,100.11, 307,648.34 and 71,949.17

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Solution

The fourth proportional to 205,100.11, 307,648.34 and 71,949.17 is: 107,923.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,100.11 : 307,648.34 = 71,949.17 : x
  2. Step 2: Convert to fraction form
    205,100.11/307,648.34 = 71,949.17/x
  3. Step 3: Cross multiply
    205,100.11x = 307,648.34 × 71,949.17
  4. Step 4: Simplify right side
    205,100.11x = 22,135,042,714.88
  5. Step 5: Solve for x
    x = 22,135,042,714.88/205,100.11
  6. Step 6: Final answer
    x = 107,923.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.