Home / 126,724.30-190,109.40-60,163.90

Finding the Fourth Proportional to 126,724.30, 190,109.40 and 60,163.90

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Solution

The fourth proportional to 126,724.30, 190,109.40 and 60,163.90 is: 90,256.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,724.30 : 190,109.40 = 60,163.90 : x
  2. Step 2: Convert to fraction form
    126,724.30/190,109.40 = 60,163.90/x
  3. Step 3: Cross multiply
    126,724.30x = 190,109.40 × 60,163.90
  4. Step 4: Simplify right side
    126,724.30x = 11,437,722,930.66
  5. Step 5: Solve for x
    x = 11,437,722,930.66/126,724.30
  6. Step 6: Final answer
    x = 90,256.75

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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.