Home / 204,649.19-307,042.11-90,781.29

Finding the Fourth Proportional to 204,649.19, 307,042.11 and 90,781.29

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Solution

The fourth proportional to 204,649.19, 307,042.11 and 90,781.29 is: 136,202.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,649.19 : 307,042.11 = 90,781.29 : x
  2. Step 2: Convert to fraction form
    204,649.19/307,042.11 = 90,781.29/x
  3. Step 3: Cross multiply
    204,649.19x = 307,042.11 × 90,781.29
  4. Step 4: Simplify right side
    204,649.19x = 27,873,678,376.22
  5. Step 5: Solve for x
    x = 27,873,678,376.22/204,649.19
  6. Step 6: Final answer
    x = 136,202.24

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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.