Home / 107,839.20-161,904.60-68,473.20

Finding the Fourth Proportional to 107,839.20, 161,904.60 and 68,473.20

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Solution

The fourth proportional to 107,839.20, 161,904.60 and 68,473.20 is: 102,802.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,839.20 : 161,904.60 = 68,473.20 : x
  2. Step 2: Convert to fraction form
    107,839.20/161,904.60 = 68,473.20/x
  3. Step 3: Cross multiply
    107,839.20x = 161,904.60 × 68,473.20
  4. Step 4: Simplify right side
    107,839.20x = 11,086,126,056.72
  5. Step 5: Solve for x
    x = 11,086,126,056.72/107,839.20
  6. Step 6: Final answer
    x = 102,802.38

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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.