Home / 135,972.72-187,669.20-86,882.94

Finding the Fourth Proportional to 135,972.72, 187,669.20 and 86,882.94

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Solution

The fourth proportional to 135,972.72, 187,669.20 and 86,882.94 is: 119,915.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,972.72 : 187,669.20 = 86,882.94 : x
  2. Step 2: Convert to fraction form
    135,972.72/187,669.20 = 86,882.94/x
  3. Step 3: Cross multiply
    135,972.72x = 187,669.20 × 86,882.94
  4. Step 4: Simplify right side
    135,972.72x = 16,305,251,843.45
  5. Step 5: Solve for x
    x = 16,305,251,843.45/135,972.72
  6. Step 6: Final answer
    x = 119,915.61

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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.