Home / 168,108.96-231,989.20-91,627.84

Finding the Fourth Proportional to 168,108.96, 231,989.20 and 91,627.84

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Solution

The fourth proportional to 168,108.96, 231,989.20 and 91,627.84 is: 126,445.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,108.96 : 231,989.20 = 91,627.84 : x
  2. Step 2: Convert to fraction form
    168,108.96/231,989.20 = 91,627.84/x
  3. Step 3: Cross multiply
    168,108.96x = 231,989.20 × 91,627.84
  4. Step 4: Simplify right side
    168,108.96x = 21,256,669,299.33
  5. Step 5: Solve for x
    x = 21,256,669,299.33/168,108.96
  6. Step 6: Final answer
    x = 126,445.78

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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.