Home / 168,057.07-231,918.79-91,576.18

Finding the Fourth Proportional to 168,057.07, 231,918.79 and 91,576.18

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Solution

The fourth proportional to 168,057.07, 231,918.79 and 91,576.18 is: 126,375.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,057.07 : 231,918.79 = 91,576.18 : x
  2. Step 2: Convert to fraction form
    168,057.07/231,918.79 = 91,576.18/x
  3. Step 3: Cross multiply
    168,057.07x = 231,918.79 × 91,576.18
  4. Step 4: Simplify right side
    168,057.07x = 21,238,236,858.42
  5. Step 5: Solve for x
    x = 21,238,236,858.42/168,057.07
  6. Step 6: Final answer
    x = 126,375.15

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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.