Home / 200,392.79-276,729.35-128,896.92

Finding the Fourth Proportional to 200,392.79, 276,729.35 and 128,896.92

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Solution

The fourth proportional to 200,392.79, 276,729.35 and 128,896.92 is: 177,998.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,392.79 : 276,729.35 = 128,896.92 : x
  2. Step 2: Convert to fraction form
    200,392.79/276,729.35 = 128,896.92/x
  3. Step 3: Cross multiply
    200,392.79x = 276,729.35 × 128,896.92
  4. Step 4: Simplify right side
    200,392.79x = 35,669,560,244.12
  5. Step 5: Solve for x
    x = 35,669,560,244.12/200,392.79
  6. Step 6: Final answer
    x = 177,998.23

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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.