Home / 129,558.44-194,363.78-54,678.66

Finding the Fourth Proportional to 129,558.44, 194,363.78 and 54,678.66

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Solution

The fourth proportional to 129,558.44, 194,363.78 and 54,678.66 is: 82,029.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,558.44 : 194,363.78 = 54,678.66 : x
  2. Step 2: Convert to fraction form
    129,558.44/194,363.78 = 54,678.66/x
  3. Step 3: Cross multiply
    129,558.44x = 194,363.78 × 54,678.66
  4. Step 4: Simplify right side
    129,558.44x = 10,627,551,042.93
  5. Step 5: Solve for x
    x = 10,627,551,042.93/129,558.44
  6. Step 6: Final answer
    x = 82,029.01

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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.