Home / 107,449.92-161,321.04-74,087.28

Finding the Fourth Proportional to 107,449.92, 161,321.04 and 74,087.28

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Solution

The fourth proportional to 107,449.92, 161,321.04 and 74,087.28 is: 111,231.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,449.92 : 161,321.04 = 74,087.28 : x
  2. Step 2: Convert to fraction form
    107,449.92/161,321.04 = 74,087.28/x
  3. Step 3: Cross multiply
    107,449.92x = 161,321.04 × 74,087.28
  4. Step 4: Simplify right side
    107,449.92x = 11,951,837,060.37
  5. Step 5: Solve for x
    x = 11,951,837,060.37/107,449.92
  6. Step 6: Final answer
    x = 111,231.70

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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.