Home / 104,318.38-143,979.78-68,507.47

Finding the Fourth Proportional to 104,318.38, 143,979.78 and 68,507.47

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Solution

The fourth proportional to 104,318.38, 143,979.78 and 68,507.47 is: 94,553.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,318.38 : 143,979.78 = 68,507.47 : x
  2. Step 2: Convert to fraction form
    104,318.38/143,979.78 = 68,507.47/x
  3. Step 3: Cross multiply
    104,318.38x = 143,979.78 × 68,507.47
  4. Step 4: Simplify right side
    104,318.38x = 9,863,690,458.96
  5. Step 5: Solve for x
    x = 9,863,690,458.96/104,318.38
  6. Step 6: Final answer
    x = 94,553.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.