Home / 107,539.20-161,375.04-68,041.92

Finding the Fourth Proportional to 107,539.20, 161,375.04 and 68,041.92

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Solution

The fourth proportional to 107,539.20, 161,375.04 and 68,041.92 is: 102,104.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,539.20 : 161,375.04 = 68,041.92 : x
  2. Step 2: Convert to fraction form
    107,539.20/161,375.04 = 68,041.92/x
  3. Step 3: Cross multiply
    107,539.20x = 161,375.04 × 68,041.92
  4. Step 4: Simplify right side
    107,539.20x = 10,980,267,561.68
  5. Step 5: Solve for x
    x = 10,980,267,561.68/107,539.20
  6. Step 6: Final answer
    x = 102,104.79

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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.