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Finding the Fourth Proportional to 68,180.20, 102,174.30 and 54,164.20

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Solution

The fourth proportional to 68,180.20, 102,174.30 and 54,164.20 is: 81,170.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,180.20 : 102,174.30 = 54,164.20 : x
  2. Step 2: Convert to fraction form
    68,180.20/102,174.30 = 54,164.20/x
  3. Step 3: Cross multiply
    68,180.20x = 102,174.30 × 54,164.20
  4. Step 4: Simplify right side
    68,180.20x = 5,534,189,220.06
  5. Step 5: Solve for x
    x = 5,534,189,220.06/68,180.20
  6. Step 6: Final answer
    x = 81,170.03

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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.