Home / 168,152.25-231,918.82-107,728.48

Finding the Fourth Proportional to 168,152.25, 231,918.82 and 107,728.48

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Solution

The fourth proportional to 168,152.25, 231,918.82 and 107,728.48 is: 148,581.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,152.25 : 231,918.82 = 107,728.48 : x
  2. Step 2: Convert to fraction form
    168,152.25/231,918.82 = 107,728.48/x
  3. Step 3: Cross multiply
    168,152.25x = 231,918.82 × 107,728.48
  4. Step 4: Simplify right side
    168,152.25x = 24,984,261,961.99
  5. Step 5: Solve for x
    x = 24,984,261,961.99/168,152.25
  6. Step 6: Final answer
    x = 148,581.19

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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.