Home / 135,817.04-187,418.43-82,131.66

Finding the Fourth Proportional to 135,817.04, 187,418.43 and 82,131.66

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Solution

The fourth proportional to 135,817.04, 187,418.43 and 82,131.66 is: 113,336.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,817.04 : 187,418.43 = 82,131.66 : x
  2. Step 2: Convert to fraction form
    135,817.04/187,418.43 = 82,131.66/x
  3. Step 3: Cross multiply
    135,817.04x = 187,418.43 × 82,131.66
  4. Step 4: Simplify right side
    135,817.04x = 15,392,986,770.49
  5. Step 5: Solve for x
    x = 15,392,986,770.49/135,817.04
  6. Step 6: Final answer
    x = 113,336.19

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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.