Home / 115,620.97-173,097.25-71,112.79

Finding the Fourth Proportional to 115,620.97, 173,097.25 and 71,112.79

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Solution

The fourth proportional to 115,620.97, 173,097.25 and 71,112.79 is: 106,463.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,620.97 : 173,097.25 = 71,112.79 : x
  2. Step 2: Convert to fraction form
    115,620.97/173,097.25 = 71,112.79/x
  3. Step 3: Cross multiply
    115,620.97x = 173,097.25 × 71,112.79
  4. Step 4: Simplify right side
    115,620.97x = 12,309,427,853.75
  5. Step 5: Solve for x
    x = 12,309,427,853.75/115,620.97
  6. Step 6: Final answer
    x = 106,463.63

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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.