Home / 167,857.34-231,642.45-91,380.68

Finding the Fourth Proportional to 167,857.34, 231,642.45 and 91,380.68

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Solution

The fourth proportional to 167,857.34, 231,642.45 and 91,380.68 is: 126,104.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,857.34 : 231,642.45 = 91,380.68 : x
  2. Step 2: Convert to fraction form
    167,857.34/231,642.45 = 91,380.68/x
  3. Step 3: Cross multiply
    167,857.34x = 231,642.45 × 91,380.68
  4. Step 4: Simplify right side
    167,857.34x = 21,167,643,439.65
  5. Step 5: Solve for x
    x = 21,167,643,439.65/167,857.34
  6. Step 6: Final answer
    x = 126,104.97

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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.