Home / 199,640.16-275,527.68-114,757.20

Finding the Fourth Proportional to 199,640.16, 275,527.68 and 114,757.20

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Solution

The fourth proportional to 199,640.16, 275,527.68 and 114,757.20 is: 158,378.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,640.16 : 275,527.68 = 114,757.20 : x
  2. Step 2: Convert to fraction form
    199,640.16/275,527.68 = 114,757.20/x
  3. Step 3: Cross multiply
    199,640.16x = 275,527.68 × 114,757.20
  4. Step 4: Simplify right side
    199,640.16x = 31,618,785,079.30
  5. Step 5: Solve for x
    x = 31,618,785,079.30/199,640.16
  6. Step 6: Final answer
    x = 158,378.88

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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.