Home / 199,815.32-275,749.11-109,176.90

Finding the Fourth Proportional to 199,815.32, 275,749.11 and 109,176.90

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Solution

The fourth proportional to 199,815.32, 275,749.11 and 109,176.90 is: 150,666.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,815.32 : 275,749.11 = 109,176.90 : x
  2. Step 2: Convert to fraction form
    199,815.32/275,749.11 = 109,176.90/x
  3. Step 3: Cross multiply
    199,815.32x = 275,749.11 × 109,176.90
  4. Step 4: Simplify right side
    199,815.32x = 30,105,433,839.54
  5. Step 5: Solve for x
    x = 30,105,433,839.54/199,815.32
  6. Step 6: Final answer
    x = 150,666.30

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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.