Home / 126,900.72-175,144.68-73,176.12

Finding the Fourth Proportional to 126,900.72, 175,144.68 and 73,176.12

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Solution

The fourth proportional to 126,900.72, 175,144.68 and 73,176.12 is: 100,995.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,900.72 : 175,144.68 = 73,176.12 : x
  2. Step 2: Convert to fraction form
    126,900.72/175,144.68 = 73,176.12/x
  3. Step 3: Cross multiply
    126,900.72x = 175,144.68 × 73,176.12
  4. Step 4: Simplify right side
    126,900.72x = 12,816,408,121.04
  5. Step 5: Solve for x
    x = 12,816,408,121.04/126,900.72
  6. Step 6: Final answer
    x = 100,995.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.