Home / 135,968.20-187,648.80-82,266.44

Finding the Fourth Proportional to 135,968.20, 187,648.80 and 82,266.44

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Solution

The fourth proportional to 135,968.20, 187,648.80 and 82,266.44 is: 113,535.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,968.20 : 187,648.80 = 82,266.44 : x
  2. Step 2: Convert to fraction form
    135,968.20/187,648.80 = 82,266.44/x
  3. Step 3: Cross multiply
    135,968.20x = 187,648.80 × 82,266.44
  4. Step 4: Simplify right side
    135,968.20x = 15,437,198,746.27
  5. Step 5: Solve for x
    x = 15,437,198,746.27/135,968.20
  6. Step 6: Final answer
    x = 113,535.36

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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.