Home / 199,782.15-275,694.79-109,138.49

Finding the Fourth Proportional to 199,782.15, 275,694.79 and 109,138.49

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Solution

The fourth proportional to 199,782.15, 275,694.79 and 109,138.49 is: 150,608.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,782.15 : 275,694.79 = 109,138.49 : x
  2. Step 2: Convert to fraction form
    199,782.15/275,694.79 = 109,138.49/x
  3. Step 3: Cross multiply
    199,782.15x = 275,694.79 × 109,138.49
  4. Step 4: Simplify right side
    199,782.15x = 30,088,912,668.64
  5. Step 5: Solve for x
    x = 30,088,912,668.64/199,782.15
  6. Step 6: Final answer
    x = 150,608.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.