Home / 167,923.72-231,731.38-91,443.72

Finding the Fourth Proportional to 167,923.72, 231,731.38 and 91,443.72

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Solution

The fourth proportional to 167,923.72, 231,731.38 and 91,443.72 is: 126,190.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,923.72 : 231,731.38 = 91,443.72 : x
  2. Step 2: Convert to fraction form
    167,923.72/231,731.38 = 91,443.72/x
  3. Step 3: Cross multiply
    167,923.72x = 231,731.38 × 91,443.72
  4. Step 4: Simplify right side
    167,923.72x = 21,190,379,427.93
  5. Step 5: Solve for x
    x = 21,190,379,427.93/167,923.72
  6. Step 6: Final answer
    x = 126,190.51

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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.