Home / 208,017.66-311,863.15-87,976.42

Finding the Fourth Proportional to 208,017.66, 311,863.15 and 87,976.42

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Solution

The fourth proportional to 208,017.66, 311,863.15 and 87,976.42 is: 131,895.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,017.66 : 311,863.15 = 87,976.42 : x
  2. Step 2: Convert to fraction form
    208,017.66/311,863.15 = 87,976.42/x
  3. Step 3: Cross multiply
    208,017.66x = 311,863.15 × 87,976.42
  4. Step 4: Simplify right side
    208,017.66x = 27,436,601,467.73
  5. Step 5: Solve for x
    x = 27,436,601,467.73/208,017.66
  6. Step 6: Final answer
    x = 131,895.54

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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.