Home / 167,721.68-231,460.26-91,245.54

Finding the Fourth Proportional to 167,721.68, 231,460.26 and 91,245.54

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Solution

The fourth proportional to 167,721.68, 231,460.26 and 91,245.54 is: 125,921.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,721.68 : 231,460.26 = 91,245.54 : x
  2. Step 2: Convert to fraction form
    167,721.68/231,460.26 = 91,245.54/x
  3. Step 3: Cross multiply
    167,721.68x = 231,460.26 × 91,245.54
  4. Step 4: Simplify right side
    167,721.68x = 21,119,716,412.24
  5. Step 5: Solve for x
    x = 21,119,716,412.24/167,721.68
  6. Step 6: Final answer
    x = 125,921.21

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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.