Home / 120,855.74-166,785.62-82,695.29

Finding the Fourth Proportional to 120,855.74, 166,785.62 and 82,695.29

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Solution

The fourth proportional to 120,855.74, 166,785.62 and 82,695.29 is: 114,122.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,855.74 : 166,785.62 = 82,695.29 : x
  2. Step 2: Convert to fraction form
    120,855.74/166,785.62 = 82,695.29/x
  3. Step 3: Cross multiply
    120,855.74x = 166,785.62 × 82,695.29
  4. Step 4: Simplify right side
    120,855.74x = 13,792,383,966.33
  5. Step 5: Solve for x
    x = 13,792,383,966.33/120,855.74
  6. Step 6: Final answer
    x = 114,122.71

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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.