Home / 167,629.10-231,331.04-91,148.72

Finding the Fourth Proportional to 167,629.10, 231,331.04 and 91,148.72

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Solution

The fourth proportional to 167,629.10, 231,331.04 and 91,148.72 is: 125,786.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,629.10 : 231,331.04 = 91,148.72 : x
  2. Step 2: Convert to fraction form
    167,629.10/231,331.04 = 91,148.72/x
  3. Step 3: Cross multiply
    167,629.10x = 231,331.04 × 91,148.72
  4. Step 4: Simplify right side
    167,629.10x = 21,085,527,572.30
  5. Step 5: Solve for x
    x = 21,085,527,572.30/167,629.10
  6. Step 6: Final answer
    x = 125,786.80

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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.