Home / 68,822.70-103,234.05-66,198.30

Finding the Fourth Proportional to 68,822.70, 103,234.05 and 66,198.30

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Solution

The fourth proportional to 68,822.70, 103,234.05 and 66,198.30 is: 99,297.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,822.70 : 103,234.05 = 66,198.30 : x
  2. Step 2: Convert to fraction form
    68,822.70/103,234.05 = 66,198.30/x
  3. Step 3: Cross multiply
    68,822.70x = 103,234.05 × 66,198.30
  4. Step 4: Simplify right side
    68,822.70x = 6,833,918,612.12
  5. Step 5: Solve for x
    x = 6,833,918,612.12/68,822.70
  6. Step 6: Final answer
    x = 99,297.45

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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.