Home / 221,067.90-305,058.42-124,274.25

Finding the Fourth Proportional to 221,067.90, 305,058.42 and 124,274.25

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Solution

The fourth proportional to 221,067.90, 305,058.42 and 124,274.25 is: 171,489.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,067.90 : 305,058.42 = 124,274.25 : x
  2. Step 2: Convert to fraction form
    221,067.90/305,058.42 = 124,274.25/x
  3. Step 3: Cross multiply
    221,067.90x = 305,058.42 × 124,274.25
  4. Step 4: Simplify right side
    221,067.90x = 37,910,906,351.69
  5. Step 5: Solve for x
    x = 37,910,906,351.69/221,067.90
  6. Step 6: Final answer
    x = 171,489.87

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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.