Home / 135,796.52-187,400.44-82,117.42

Finding the Fourth Proportional to 135,796.52, 187,400.44 and 82,117.42

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Solution

The fourth proportional to 135,796.52, 187,400.44 and 82,117.42 is: 113,322.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,796.52 : 187,400.44 = 82,117.42 : x
  2. Step 2: Convert to fraction form
    135,796.52/187,400.44 = 82,117.42/x
  3. Step 3: Cross multiply
    135,796.52x = 187,400.44 × 82,117.42
  4. Step 4: Simplify right side
    135,796.52x = 15,388,840,639.66
  5. Step 5: Solve for x
    x = 15,388,840,639.66/135,796.52
  6. Step 6: Final answer
    x = 113,322.79

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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.