Home / 168,102.77-231,975.90-91,620.36

Finding the Fourth Proportional to 168,102.77, 231,975.90 and 91,620.36

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Solution

The fourth proportional to 168,102.77, 231,975.90 and 91,620.36 is: 126,432.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,102.77 : 231,975.90 = 91,620.36 : x
  2. Step 2: Convert to fraction form
    168,102.77/231,975.90 = 91,620.36/x
  3. Step 3: Cross multiply
    168,102.77x = 231,975.90 × 91,620.36
  4. Step 4: Simplify right side
    168,102.77x = 21,253,715,469.32
  5. Step 5: Solve for x
    x = 21,253,715,469.32/168,102.77
  6. Step 6: Final answer
    x = 126,432.87

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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.