Home / 131,936.95-197,438.25-82,040.54

Finding the Fourth Proportional to 131,936.95, 197,438.25 and 82,040.54

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Solution

The fourth proportional to 131,936.95, 197,438.25 and 82,040.54 is: 122,770.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,936.95 : 197,438.25 = 82,040.54 : x
  2. Step 2: Convert to fraction form
    131,936.95/197,438.25 = 82,040.54/x
  3. Step 3: Cross multiply
    131,936.95x = 197,438.25 × 82,040.54
  4. Step 4: Simplify right side
    131,936.95x = 16,197,940,646.66
  5. Step 5: Solve for x
    x = 16,197,940,646.66/131,936.95
  6. Step 6: Final answer
    x = 122,770.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.