Home / 200,392.74-276,408.96-128,863.26

Finding the Fourth Proportional to 200,392.74, 276,408.96 and 128,863.26

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Solution

The fourth proportional to 200,392.74, 276,408.96 and 128,863.26 is: 177,745.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,392.74 : 276,408.96 = 128,863.26 : x
  2. Step 2: Convert to fraction form
    200,392.74/276,408.96 = 128,863.26/x
  3. Step 3: Cross multiply
    200,392.74x = 276,408.96 × 128,863.26
  4. Step 4: Simplify right side
    200,392.74x = 35,618,959,678.81
  5. Step 5: Solve for x
    x = 35,618,959,678.81/200,392.74
  6. Step 6: Final answer
    x = 177,745.76

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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.