Home / 129,558.32-194,363.60-54,678.54

Finding the Fourth Proportional to 129,558.32, 194,363.60 and 54,678.54

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Solution

The fourth proportional to 129,558.32, 194,363.60 and 54,678.54 is: 82,028.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,558.32 : 194,363.60 = 54,678.54 : x
  2. Step 2: Convert to fraction form
    129,558.32/194,363.60 = 54,678.54/x
  3. Step 3: Cross multiply
    129,558.32x = 194,363.60 × 54,678.54
  4. Step 4: Simplify right side
    129,558.32x = 10,627,517,877.14
  5. Step 5: Solve for x
    x = 10,627,517,877.14/129,558.32
  6. Step 6: Final answer
    x = 82,028.83

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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.