Home / 135,829.65-187,464.41-81,383.97

Finding the Fourth Proportional to 135,829.65, 187,464.41 and 81,383.97

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Solution

The fourth proportional to 135,829.65, 187,464.41 and 81,383.97 is: 112,321.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,829.65 : 187,464.41 = 81,383.97 : x
  2. Step 2: Convert to fraction form
    135,829.65/187,464.41 = 81,383.97/x
  3. Step 3: Cross multiply
    135,829.65x = 187,464.41 × 81,383.97
  4. Step 4: Simplify right side
    135,829.65x = 15,256,597,466.28
  5. Step 5: Solve for x
    x = 15,256,597,466.28/135,829.65
  6. Step 6: Final answer
    x = 112,321.55

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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.