Home / 115,773.12-159,713.28-68,025.60

Finding the Fourth Proportional to 115,773.12, 159,713.28 and 68,025.60

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Solution

The fourth proportional to 115,773.12, 159,713.28 and 68,025.60 is: 93,843.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,773.12 : 159,713.28 = 68,025.60 : x
  2. Step 2: Convert to fraction form
    115,773.12/159,713.28 = 68,025.60/x
  3. Step 3: Cross multiply
    115,773.12x = 159,713.28 × 68,025.60
  4. Step 4: Simplify right side
    115,773.12x = 10,864,591,699.97
  5. Step 5: Solve for x
    x = 10,864,591,699.97/115,773.12
  6. Step 6: Final answer
    x = 93,843.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.