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Finding the Fourth Proportional to 68,199.28, 102,297.22 and 18,279.32

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Solution

The fourth proportional to 68,199.28, 102,297.22 and 18,279.32 is: 27,418.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,199.28 : 102,297.22 = 18,279.32 : x
  2. Step 2: Convert to fraction form
    68,199.28/102,297.22 = 18,279.32/x
  3. Step 3: Cross multiply
    68,199.28x = 102,297.22 × 18,279.32
  4. Step 4: Simplify right side
    68,199.28x = 1,869,923,619.49
  5. Step 5: Solve for x
    x = 1,869,923,619.49/68,199.28
  6. Step 6: Final answer
    x = 27,418.52

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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.