Home / 135,970.20-187,651.56-82,268.44

Finding the Fourth Proportional to 135,970.20, 187,651.56 and 82,268.44

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Solution

The fourth proportional to 135,970.20, 187,651.56 and 82,268.44 is: 113,538.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,970.20 : 187,651.56 = 82,268.44 : x
  2. Step 2: Convert to fraction form
    135,970.20/187,651.56 = 82,268.44/x
  3. Step 3: Cross multiply
    135,970.20x = 187,651.56 × 82,268.44
  4. Step 4: Simplify right side
    135,970.20x = 15,437,801,104.77
  5. Step 5: Solve for x
    x = 15,437,801,104.77/135,970.20
  6. Step 6: Final answer
    x = 113,538.12

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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.