Home / 135,959.21-187,636.39-82,257.42

Finding the Fourth Proportional to 135,959.21, 187,636.39 and 82,257.42

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Solution

The fourth proportional to 135,959.21, 187,636.39 and 82,257.42 is: 113,522.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,959.21 : 187,636.39 = 82,257.42 : x
  2. Step 2: Convert to fraction form
    135,959.21/187,636.39 = 82,257.42/x
  3. Step 3: Cross multiply
    135,959.21x = 187,636.39 × 82,257.42
  4. Step 4: Simplify right side
    135,959.21x = 15,434,485,339.51
  5. Step 5: Solve for x
    x = 15,434,485,339.51/135,959.21
  6. Step 6: Final answer
    x = 113,522.91

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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.