Home / 279,083.62-418,621.83-68,723.38

Finding the Fourth Proportional to 279,083.62, 418,621.83 and 68,723.38

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Solution

The fourth proportional to 279,083.62, 418,621.83 and 68,723.38 is: 103,084.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,083.62 : 418,621.83 = 68,723.38 : x
  2. Step 2: Convert to fraction form
    279,083.62/418,621.83 = 68,723.38/x
  3. Step 3: Cross multiply
    279,083.62x = 418,621.83 × 68,723.38
  4. Step 4: Simplify right side
    279,083.62x = 28,769,107,099.39
  5. Step 5: Solve for x
    x = 28,769,107,099.39/279,083.62
  6. Step 6: Final answer
    x = 103,084.18

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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.