Home / 172,351.37-258,387.60-77,512.10

Finding the Fourth Proportional to 172,351.37, 258,387.60 and 77,512.10

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Solution

The fourth proportional to 172,351.37, 258,387.60 and 77,512.10 is: 116,205.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,351.37 : 258,387.60 = 77,512.10 : x
  2. Step 2: Convert to fraction form
    172,351.37/258,387.60 = 77,512.10/x
  3. Step 3: Cross multiply
    172,351.37x = 258,387.60 × 77,512.10
  4. Step 4: Simplify right side
    172,351.37x = 20,028,165,489.96
  5. Step 5: Solve for x
    x = 20,028,165,489.96/172,351.37
  6. Step 6: Final answer
    x = 116,205.43

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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.