Home / 214,190.92-321,786.78-125,505.64

Finding the Fourth Proportional to 214,190.92, 321,786.78 and 125,505.64

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Solution

The fourth proportional to 214,190.92, 321,786.78 and 125,505.64 is: 188,551.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,190.92 : 321,786.78 = 125,505.64 : x
  2. Step 2: Convert to fraction form
    214,190.92/321,786.78 = 125,505.64/x
  3. Step 3: Cross multiply
    214,190.92x = 321,786.78 × 125,505.64
  4. Step 4: Simplify right side
    214,190.92x = 40,386,055,767.44
  5. Step 5: Solve for x
    x = 40,386,055,767.44/214,190.92
  6. Step 6: Final answer
    x = 188,551.67

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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.