Home / 168,018.79-231,865.23-91,537.65

Finding the Fourth Proportional to 168,018.79, 231,865.23 and 91,537.65

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Solution

The fourth proportional to 168,018.79, 231,865.23 and 91,537.65 is: 126,321.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,018.79 : 231,865.23 = 91,537.65 : x
  2. Step 2: Convert to fraction form
    168,018.79/231,865.23 = 91,537.65/x
  3. Step 3: Cross multiply
    168,018.79x = 231,865.23 × 91,537.65
  4. Step 4: Simplify right side
    168,018.79x = 21,224,396,653.90
  5. Step 5: Solve for x
    x = 21,224,396,653.90/168,018.79
  6. Step 6: Final answer
    x = 126,321.57

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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.