Home / 129,623.06-194,511.14-54,738.36

Finding the Fourth Proportional to 129,623.06, 194,511.14 and 54,738.36

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Solution

The fourth proportional to 129,623.06, 194,511.14 and 54,738.36 is: 82,139.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,623.06 : 194,511.14 = 54,738.36 : x
  2. Step 2: Convert to fraction form
    129,623.06/194,511.14 = 54,738.36/x
  3. Step 3: Cross multiply
    129,623.06x = 194,511.14 × 54,738.36
  4. Step 4: Simplify right side
    129,623.06x = 10,647,220,736.91
  5. Step 5: Solve for x
    x = 10,647,220,736.91/129,623.06
  6. Step 6: Final answer
    x = 82,139.86

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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.