Home / 142,912.65-197,205.33-82,502.85

Finding the Fourth Proportional to 142,912.65, 197,205.33 and 82,502.85

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Solution

The fourth proportional to 142,912.65, 197,205.33 and 82,502.85 is: 113,845.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,912.65 : 197,205.33 = 82,502.85 : x
  2. Step 2: Convert to fraction form
    142,912.65/197,205.33 = 82,502.85/x
  3. Step 3: Cross multiply
    142,912.65x = 197,205.33 × 82,502.85
  4. Step 4: Simplify right side
    142,912.65x = 16,270,002,809.10
  5. Step 5: Solve for x
    x = 16,270,002,809.10/142,912.65
  6. Step 6: Final answer
    x = 113,845.78

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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.