Home / 135,741.12-187,318.14-82,016.64

Finding the Fourth Proportional to 135,741.12, 187,318.14 and 82,016.64

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Solution

The fourth proportional to 135,741.12, 187,318.14 and 82,016.64 is: 113,180.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,741.12 : 187,318.14 = 82,016.64 : x
  2. Step 2: Convert to fraction form
    135,741.12/187,318.14 = 82,016.64/x
  3. Step 3: Cross multiply
    135,741.12x = 187,318.14 × 82,016.64
  4. Step 4: Simplify right side
    135,741.12x = 15,363,204,453.85
  5. Step 5: Solve for x
    x = 15,363,204,453.85/135,741.12
  6. Step 6: Final answer
    x = 113,180.18

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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.