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Finding the Fourth Proportional to 83,168.88, 114,894.48 and 71,971.44

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Solution

The fourth proportional to 83,168.88, 114,894.48 and 71,971.44 is: 99,425.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,168.88 : 114,894.48 = 71,971.44 : x
  2. Step 2: Convert to fraction form
    83,168.88/114,894.48 = 71,971.44/x
  3. Step 3: Cross multiply
    83,168.88x = 114,894.48 × 71,971.44
  4. Step 4: Simplify right side
    83,168.88x = 8,269,121,173.65
  5. Step 5: Solve for x
    x = 8,269,121,173.65/83,168.88
  6. Step 6: Final answer
    x = 99,425.66

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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.