Home / 167,471.26-231,112.98-90,991.87

Finding the Fourth Proportional to 167,471.26, 231,112.98 and 90,991.87

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Solution

The fourth proportional to 167,471.26, 231,112.98 and 90,991.87 is: 125,570.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,471.26 : 231,112.98 = 90,991.87 : x
  2. Step 2: Convert to fraction form
    167,471.26/231,112.98 = 90,991.87/x
  3. Step 3: Cross multiply
    167,471.26x = 231,112.98 × 90,991.87
  4. Step 4: Simplify right side
    167,471.26x = 21,029,402,231.47
  5. Step 5: Solve for x
    x = 21,029,402,231.47/167,471.26
  6. Step 6: Final answer
    x = 125,570.22

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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.