Home / 172,413.06-258,608.85-82,519.62

Finding the Fourth Proportional to 172,413.06, 258,608.85 and 82,519.62

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Solution

The fourth proportional to 172,413.06, 258,608.85 and 82,519.62 is: 123,774.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,413.06 : 258,608.85 = 82,519.62 : x
  2. Step 2: Convert to fraction form
    172,413.06/258,608.85 = 82,519.62/x
  3. Step 3: Cross multiply
    172,413.06x = 258,608.85 × 82,519.62
  4. Step 4: Simplify right side
    172,413.06x = 21,340,304,030.64
  5. Step 5: Solve for x
    x = 21,340,304,030.64/172,413.06
  6. Step 6: Final answer
    x = 123,774.29

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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.