Home / 135,865.62-187,495.86-82,186.56

Finding the Fourth Proportional to 135,865.62, 187,495.86 and 82,186.56

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Solution

The fourth proportional to 135,865.62, 187,495.86 and 82,186.56 is: 113,418.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,865.62 : 187,495.86 = 82,186.56 : x
  2. Step 2: Convert to fraction form
    135,865.62/187,495.86 = 82,186.56/x
  3. Step 3: Cross multiply
    135,865.62x = 187,495.86 × 82,186.56
  4. Step 4: Simplify right side
    135,865.62x = 15,409,639,747.64
  5. Step 5: Solve for x
    x = 15,409,639,747.64/135,865.62
  6. Step 6: Final answer
    x = 113,418.24

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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.