Home / 199,836.72-275,766.36-109,190.64

Finding the Fourth Proportional to 199,836.72, 275,766.36 and 109,190.64

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Solution

The fourth proportional to 199,836.72, 275,766.36 and 109,190.64 is: 150,678.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,836.72 : 275,766.36 = 109,190.64 : x
  2. Step 2: Convert to fraction form
    199,836.72/275,766.36 = 109,190.64/x
  3. Step 3: Cross multiply
    199,836.72x = 275,766.36 × 109,190.64
  4. Step 4: Simplify right side
    199,836.72x = 30,111,105,338.87
  5. Step 5: Solve for x
    x = 30,111,105,338.87/199,836.72
  6. Step 6: Final answer
    x = 150,678.54

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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.