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Finding the Fourth Proportional to 121,751.34, 182,375.42 and 71,677.14

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Solution

The fourth proportional to 121,751.34, 182,375.42 and 71,677.14 is: 107,367.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,751.34 : 182,375.42 = 71,677.14 : x
  2. Step 2: Convert to fraction form
    121,751.34/182,375.42 = 71,677.14/x
  3. Step 3: Cross multiply
    121,751.34x = 182,375.42 × 71,677.14
  4. Step 4: Simplify right side
    121,751.34x = 13,072,148,511.90
  5. Step 5: Solve for x
    x = 13,072,148,511.90/121,751.34
  6. Step 6: Final answer
    x = 107,367.59

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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.