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Finding the Fourth Proportional to 115,992, 173,863.62 and 75,995.88

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Solution

The fourth proportional to 115,992, 173,863.62 and 75,995.88 is: 113,912.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,992 : 173,863.62 = 75,995.88 : x
  2. Step 2: Convert to fraction form
    115,992/173,863.62 = 75,995.88/x
  3. Step 3: Cross multiply
    115,992x = 173,863.62 × 75,995.88
  4. Step 4: Simplify right side
    115,992x = 13,212,918,801.89
  5. Step 5: Solve for x
    x = 13,212,918,801.89/115,992
  6. Step 6: Final answer
    x = 113,912.33

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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.