Home / 135,759.12-187,352.64-82,033.86

Finding the Fourth Proportional to 135,759.12, 187,352.64 and 82,033.86

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Solution

The fourth proportional to 135,759.12, 187,352.64 and 82,033.86 is: 113,209.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,759.12 : 187,352.64 = 82,033.86 : x
  2. Step 2: Convert to fraction form
    135,759.12/187,352.64 = 82,033.86/x
  3. Step 3: Cross multiply
    135,759.12x = 187,352.64 × 82,033.86
  4. Step 4: Simplify right side
    135,759.12x = 15,369,260,240.39
  5. Step 5: Solve for x
    x = 15,369,260,240.39/135,759.12
  6. Step 6: Final answer
    x = 113,209.78

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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.