Home / 199,911.20-275,876.78-109,267.11

Finding the Fourth Proportional to 199,911.20, 275,876.78 and 109,267.11

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Solution

The fourth proportional to 199,911.20, 275,876.78 and 109,267.11 is: 150,788.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,911.20 : 275,876.78 = 109,267.11 : x
  2. Step 2: Convert to fraction form
    199,911.20/275,876.78 = 109,267.11/x
  3. Step 3: Cross multiply
    199,911.20x = 275,876.78 × 109,267.11
  4. Step 4: Simplify right side
    199,911.20x = 30,144,258,739.87
  5. Step 5: Solve for x
    x = 30,144,258,739.87/199,911.20
  6. Step 6: Final answer
    x = 150,788.25

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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.