Home / 135,795.53-187,399.07-82,116.42

Finding the Fourth Proportional to 135,795.53, 187,399.07 and 82,116.42

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Solution

The fourth proportional to 135,795.53, 187,399.07 and 82,116.42 is: 113,321.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,795.53 : 187,399.07 = 82,116.42 : x
  2. Step 2: Convert to fraction form
    135,795.53/187,399.07 = 82,116.42/x
  3. Step 3: Cross multiply
    135,795.53x = 187,399.07 × 82,116.42
  4. Step 4: Simplify right side
    135,795.53x = 15,388,540,329.15
  5. Step 5: Solve for x
    x = 15,388,540,329.15/135,795.53
  6. Step 6: Final answer
    x = 113,321.41

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1.5x scale

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.