Home / 143,016.49-197,372.19-82,589.68

Finding the Fourth Proportional to 143,016.49, 197,372.19 and 82,589.68

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Solution

The fourth proportional to 143,016.49, 197,372.19 and 82,589.68 is: 113,979.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,016.49 : 197,372.19 = 82,589.68 : x
  2. Step 2: Convert to fraction form
    143,016.49/197,372.19 = 82,589.68/x
  3. Step 3: Cross multiply
    143,016.49x = 197,372.19 × 82,589.68
  4. Step 4: Simplify right side
    143,016.49x = 16,300,906,013.00
  5. Step 5: Solve for x
    x = 16,300,906,013.00/143,016.49
  6. Step 6: Final answer
    x = 113,979.21

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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.