Home / 173,120.36-258,997.30-131,121.45

Finding the Fourth Proportional to 173,120.36, 258,997.30 and 131,121.45

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Solution

The fourth proportional to 173,120.36, 258,997.30 and 131,121.45 is: 196,164.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,120.36 : 258,997.30 = 131,121.45 : x
  2. Step 2: Convert to fraction form
    173,120.36/258,997.30 = 131,121.45/x
  3. Step 3: Cross multiply
    173,120.36x = 258,997.30 × 131,121.45
  4. Step 4: Simplify right side
    173,120.36x = 33,960,101,194.28
  5. Step 5: Solve for x
    x = 33,960,101,194.28/173,120.36
  6. Step 6: Final answer
    x = 196,164.69

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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.