Home / 172,230.43-258,257.10-77,379.33

Finding the Fourth Proportional to 172,230.43, 258,257.10 and 77,379.33

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Solution

The fourth proportional to 172,230.43, 258,257.10 and 77,379.33 is: 116,029.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,230.43 : 258,257.10 = 77,379.33 : x
  2. Step 2: Convert to fraction form
    172,230.43/258,257.10 = 77,379.33/x
  3. Step 3: Cross multiply
    172,230.43x = 258,257.10 × 77,379.33
  4. Step 4: Simplify right side
    172,230.43x = 19,983,761,365.74
  5. Step 5: Solve for x
    x = 19,983,761,365.74/172,230.43
  6. Step 6: Final answer
    x = 116,029.21

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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.