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Finding the Fourth Proportional to 129,108, 193,662 and 41,556

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Solution

The fourth proportional to 129,108, 193,662 and 41,556 is: 62,334

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,108 : 193,662 = 41,556 : x
  2. Step 2: Convert to fraction form
    129,108/193,662 = 41,556/x
  3. Step 3: Cross multiply
    129,108x = 193,662 × 41,556
  4. Step 4: Simplify right side
    129,108x = 8,047,818,072
  5. Step 5: Solve for x
    x = 8,047,818,072/129,108
  6. Step 6: Final answer
    x = 62,334

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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.