Home / 68,072.08-102,112.96-18,151.90

Finding the Fourth Proportional to 68,072.08, 102,112.96 and 18,151.90

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Solution

The fourth proportional to 68,072.08, 102,112.96 and 18,151.90 is: 27,229.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,072.08 : 102,112.96 = 18,151.90 : x
  2. Step 2: Convert to fraction form
    68,072.08/102,112.96 = 18,151.90/x
  3. Step 3: Cross multiply
    68,072.08x = 102,112.96 × 18,151.90
  4. Step 4: Simplify right side
    68,072.08x = 1,853,544,238.62
  5. Step 5: Solve for x
    x = 1,853,544,238.62/68,072.08
  6. Step 6: Final answer
    x = 27,229.14

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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.