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Finding the Fourth Proportional to 167,372.88, 230,976.39 and 91,921.38

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Solution

The fourth proportional to 167,372.88, 230,976.39 and 91,921.38 is: 126,852.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,372.88 : 230,976.39 = 91,921.38 : x
  2. Step 2: Convert to fraction form
    167,372.88/230,976.39 = 91,921.38/x
  3. Step 3: Cross multiply
    167,372.88x = 230,976.39 × 91,921.38
  4. Step 4: Simplify right side
    167,372.88x = 21,231,668,516.22
  5. Step 5: Solve for x
    x = 21,231,668,516.22/167,372.88
  6. Step 6: Final answer
    x = 126,852.50

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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.