Home / 168,100.07-231,975.06-91,619.87

Finding the Fourth Proportional to 168,100.07, 231,975.06 and 91,619.87

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Solution

The fourth proportional to 168,100.07, 231,975.06 and 91,619.87 is: 126,433.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,100.07 : 231,975.06 = 91,619.87 : x
  2. Step 2: Convert to fraction form
    168,100.07/231,975.06 = 91,619.87/x
  3. Step 3: Cross multiply
    168,100.07x = 231,975.06 × 91,619.87
  4. Step 4: Simplify right side
    168,100.07x = 21,253,524,840.44
  5. Step 5: Solve for x
    x = 21,253,524,840.44/168,100.07
  6. Step 6: Final answer
    x = 126,433.77

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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.