Home / 168,028.32-231,876.96-91,550.61

Finding the Fourth Proportional to 168,028.32, 231,876.96 and 91,550.61

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Solution

The fourth proportional to 168,028.32, 231,876.96 and 91,550.61 is: 126,338.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,028.32 : 231,876.96 = 91,550.61 : x
  2. Step 2: Convert to fraction form
    168,028.32/231,876.96 = 91,550.61/x
  3. Step 3: Cross multiply
    168,028.32x = 231,876.96 × 91,550.61
  4. Step 4: Simplify right side
    168,028.32x = 21,228,475,744.68
  5. Step 5: Solve for x
    x = 21,228,475,744.68/168,028.32
  6. Step 6: Final answer
    x = 126,338.67

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1.5x scale

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.