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Finding the Fourth Proportional to 122,213.24, 168,605.52 and 71,218.34

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Solution

The fourth proportional to 122,213.24, 168,605.52 and 71,218.34 is: 98,252.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,213.24 : 168,605.52 = 71,218.34 : x
  2. Step 2: Convert to fraction form
    122,213.24/168,605.52 = 71,218.34/x
  3. Step 3: Cross multiply
    122,213.24x = 168,605.52 × 71,218.34
  4. Step 4: Simplify right side
    122,213.24x = 12,007,805,249.24
  5. Step 5: Solve for x
    x = 12,007,805,249.24/122,213.24
  6. Step 6: Final answer
    x = 98,252.90

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