Home / 172,345.03-258,517.16-82,113.85

Finding the Fourth Proportional to 172,345.03, 258,517.16 and 82,113.85

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Solution

The fourth proportional to 172,345.03, 258,517.16 and 82,113.85 is: 123,170.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,345.03 : 258,517.16 = 82,113.85 : x
  2. Step 2: Convert to fraction form
    172,345.03/258,517.16 = 82,113.85/x
  3. Step 3: Cross multiply
    172,345.03x = 258,517.16 × 82,113.85
  4. Step 4: Simplify right side
    172,345.03x = 21,227,838,888.10
  5. Step 5: Solve for x
    x = 21,227,838,888.10/172,345.03
  6. Step 6: Final answer
    x = 123,170.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.