Home / 199,976.90-275,965.18-109,333.22

Finding the Fourth Proportional to 199,976.90, 275,965.18 and 109,333.22

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Solution

The fourth proportional to 199,976.90, 275,965.18 and 109,333.22 is: 150,878.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,976.90 : 275,965.18 = 109,333.22 : x
  2. Step 2: Convert to fraction form
    199,976.90/275,965.18 = 109,333.22/x
  3. Step 3: Cross multiply
    199,976.90x = 275,965.18 × 109,333.22
  4. Step 4: Simplify right side
    199,976.90x = 30,172,160,084.12
  5. Step 5: Solve for x
    x = 30,172,160,084.12/199,976.90
  6. Step 6: Final answer
    x = 150,878.23

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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.