Home / 120,721.24-181,259.61-67,517.46

Finding the Fourth Proportional to 120,721.24, 181,259.61 and 67,517.46

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Solution

The fourth proportional to 120,721.24, 181,259.61 and 67,517.46 is: 101,375.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,721.24 : 181,259.61 = 67,517.46 : x
  2. Step 2: Convert to fraction form
    120,721.24/181,259.61 = 67,517.46/x
  3. Step 3: Cross multiply
    120,721.24x = 181,259.61 × 67,517.46
  4. Step 4: Simplify right side
    120,721.24x = 12,238,188,467.79
  5. Step 5: Solve for x
    x = 12,238,188,467.79/120,721.24
  6. Step 6: Final answer
    x = 101,375.60

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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.