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Finding the Fourth Proportional to 168,110.96, 231,991.96 and 91,629.84

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Solution

The fourth proportional to 168,110.96, 231,991.96 and 91,629.84 is: 126,448.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,110.96 : 231,991.96 = 91,629.84 : x
  2. Step 2: Convert to fraction form
    168,110.96/231,991.96 = 91,629.84/x
  3. Step 3: Cross multiply
    168,110.96x = 231,991.96 × 91,629.84
  4. Step 4: Simplify right side
    168,110.96x = 21,257,386,176.09
  5. Step 5: Solve for x
    x = 21,257,386,176.09/168,110.96
  6. Step 6: Final answer
    x = 126,448.54

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1.5x scale

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.