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Finding the Fourth Proportional to 121,874.21, 182,815.36 and 41,911.39

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Solution

The fourth proportional to 121,874.21, 182,815.36 and 41,911.39 is: 62,868.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,874.21 : 182,815.36 = 41,911.39 : x
  2. Step 2: Convert to fraction form
    121,874.21/182,815.36 = 41,911.39/x
  3. Step 3: Cross multiply
    121,874.21x = 182,815.36 × 41,911.39
  4. Step 4: Simplify right side
    121,874.21x = 7,662,045,850.95
  5. Step 5: Solve for x
    x = 7,662,045,850.95/121,874.21
  6. Step 6: Final answer
    x = 62,868.48

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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.