Home / 209,286.64-313,771.87-107,976.16

Finding the Fourth Proportional to 209,286.64, 313,771.87 and 107,976.16

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Solution

The fourth proportional to 209,286.64, 313,771.87 and 107,976.16 is: 161,882.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,286.64 : 313,771.87 = 107,976.16 : x
  2. Step 2: Convert to fraction form
    209,286.64/313,771.87 = 107,976.16/x
  3. Step 3: Cross multiply
    209,286.64x = 313,771.87 × 107,976.16
  4. Step 4: Simplify right side
    209,286.64x = 33,879,880,584.25
  5. Step 5: Solve for x
    x = 33,879,880,584.25/209,286.64
  6. Step 6: Final answer
    x = 161,882.67

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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.