Home / 100,665.11-150,862.32-50,781.06

Finding the Fourth Proportional to 100,665.11, 150,862.32 and 50,781.06

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Solution

The fourth proportional to 100,665.11, 150,862.32 and 50,781.06 is: 76,103.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,665.11 : 150,862.32 = 50,781.06 : x
  2. Step 2: Convert to fraction form
    100,665.11/150,862.32 = 50,781.06/x
  3. Step 3: Cross multiply
    100,665.11x = 150,862.32 × 50,781.06
  4. Step 4: Simplify right side
    100,665.11x = 7,660,948,523.66
  5. Step 5: Solve for x
    x = 7,660,948,523.66/100,665.11
  6. Step 6: Final answer
    x = 76,103.31

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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.