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Finding the Fourth Proportional to 68,273.88, 102,340.45 and 26,142.45

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Solution

The fourth proportional to 68,273.88, 102,340.45 and 26,142.45 is: 39,186.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,273.88 : 102,340.45 = 26,142.45 : x
  2. Step 2: Convert to fraction form
    68,273.88/102,340.45 = 26,142.45/x
  3. Step 3: Cross multiply
    68,273.88x = 102,340.45 × 26,142.45
  4. Step 4: Simplify right side
    68,273.88x = 2,675,430,097.10
  5. Step 5: Solve for x
    x = 2,675,430,097.10/68,273.88
  6. Step 6: Final answer
    x = 39,186.73

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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.