Home / 143,001.24-197,370.42-82,581.72

Finding the Fourth Proportional to 143,001.24, 197,370.42 and 82,581.72

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Solution

The fourth proportional to 143,001.24, 197,370.42 and 82,581.72 is: 113,979.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,001.24 : 197,370.42 = 82,581.72 : x
  2. Step 2: Convert to fraction form
    143,001.24/197,370.42 = 82,581.72/x
  3. Step 3: Cross multiply
    143,001.24x = 197,370.42 × 82,581.72
  4. Step 4: Simplify right side
    143,001.24x = 16,299,188,760.72
  5. Step 5: Solve for x
    x = 16,299,188,760.72/143,001.24
  6. Step 6: Final answer
    x = 113,979.35

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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.