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Finding the Fourth Proportional to 84,844, 127,234 and 68,163.04

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Solution

The fourth proportional to 84,844, 127,234 and 68,163.04 is: 102,218.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,844 : 127,234 = 68,163.04 : x
  2. Step 2: Convert to fraction form
    84,844/127,234 = 68,163.04/x
  3. Step 3: Cross multiply
    84,844x = 127,234 × 68,163.04
  4. Step 4: Simplify right side
    84,844x = 8,672,656,231.36
  5. Step 5: Solve for x
    x = 8,672,656,231.36/84,844
  6. Step 6: Final answer
    x = 102,218.85

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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.