Home / 143,257.05-197,719.08-82,864.41

Finding the Fourth Proportional to 143,257.05, 197,719.08 and 82,864.41

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Solution

The fourth proportional to 143,257.05, 197,719.08 and 82,864.41 is: 114,366.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,257.05 : 197,719.08 = 82,864.41 : x
  2. Step 2: Convert to fraction form
    143,257.05/197,719.08 = 82,864.41/x
  3. Step 3: Cross multiply
    143,257.05x = 197,719.08 × 82,864.41
  4. Step 4: Simplify right side
    143,257.05x = 16,383,874,909.94
  5. Step 5: Solve for x
    x = 16,383,874,909.94/143,257.05
  6. Step 6: Final answer
    x = 114,366.97

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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.