Home / 202,080.26-278,872.08-111,439.64

Finding the Fourth Proportional to 202,080.26, 278,872.08 and 111,439.64

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Solution

The fourth proportional to 202,080.26, 278,872.08 and 111,439.64 is: 153,787.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,080.26 : 278,872.08 = 111,439.64 : x
  2. Step 2: Convert to fraction form
    202,080.26/278,872.08 = 111,439.64/x
  3. Step 3: Cross multiply
    202,080.26x = 278,872.08 × 111,439.64
  4. Step 4: Simplify right side
    202,080.26x = 31,077,404,201.25
  5. Step 5: Solve for x
    x = 31,077,404,201.25/202,080.26
  6. Step 6: Final answer
    x = 153,787.43

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1.5x scale

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.