Home / 168,020.51-231,867.60-91,539.38

Finding the Fourth Proportional to 168,020.51, 231,867.60 and 91,539.38

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Solution

The fourth proportional to 168,020.51, 231,867.60 and 91,539.38 is: 126,323.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,020.51 : 231,867.60 = 91,539.38 : x
  2. Step 2: Convert to fraction form
    168,020.51/231,867.60 = 91,539.38/x
  3. Step 3: Cross multiply
    168,020.51x = 231,867.60 × 91,539.38
  4. Step 4: Simplify right side
    168,020.51x = 21,225,015,186.75
  5. Step 5: Solve for x
    x = 21,225,015,186.75/168,020.51
  6. Step 6: Final answer
    x = 126,323.96

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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.