Home / 100,139.22-150,243.48-58,055.88

Finding the Fourth Proportional to 100,139.22, 150,243.48 and 58,055.88

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Solution

The fourth proportional to 100,139.22, 150,243.48 and 58,055.88 is: 87,103.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,139.22 : 150,243.48 = 58,055.88 : x
  2. Step 2: Convert to fraction form
    100,139.22/150,243.48 = 58,055.88/x
  3. Step 3: Cross multiply
    100,139.22x = 150,243.48 × 58,055.88
  4. Step 4: Simplify right side
    100,139.22x = 8,722,517,445.66
  5. Step 5: Solve for x
    x = 8,722,517,445.66/100,139.22
  6. Step 6: Final answer
    x = 87,103.91

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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.