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Finding the Fourth Proportional to 84,854, 127,249 and 68,173.04

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Solution

The fourth proportional to 84,854, 127,249 and 68,173.04 is: 102,233.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,854 : 127,249 = 68,173.04 : x
  2. Step 2: Convert to fraction form
    84,854/127,249 = 68,173.04/x
  3. Step 3: Cross multiply
    84,854x = 127,249 × 68,173.04
  4. Step 4: Simplify right side
    84,854x = 8,674,951,166.96
  5. Step 5: Solve for x
    x = 8,674,951,166.96/84,854
  6. Step 6: Final answer
    x = 102,233.85

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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.