Home / 203,584.39-280,946.79-112,940.36

Finding the Fourth Proportional to 203,584.39, 280,946.79 and 112,940.36

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Solution

The fourth proportional to 203,584.39, 280,946.79 and 112,940.36 is: 155,857.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,584.39 : 280,946.79 = 112,940.36 : x
  2. Step 2: Convert to fraction form
    203,584.39/280,946.79 = 112,940.36/x
  3. Step 3: Cross multiply
    203,584.39x = 280,946.79 × 112,940.36
  4. Step 4: Simplify right side
    203,584.39x = 31,730,230,618.73
  5. Step 5: Solve for x
    x = 31,730,230,618.73/203,584.39
  6. Step 6: Final answer
    x = 155,857.88

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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.