Home / 200,118.60-276,162.21-128,525.94

Finding the Fourth Proportional to 200,118.60, 276,162.21 and 128,525.94

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Solution

The fourth proportional to 200,118.60, 276,162.21 and 128,525.94 is: 177,364.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,118.60 : 276,162.21 = 128,525.94 : x
  2. Step 2: Convert to fraction form
    200,118.60/276,162.21 = 128,525.94/x
  3. Step 3: Cross multiply
    200,118.60x = 276,162.21 × 128,525.94
  4. Step 4: Simplify right side
    200,118.60x = 35,494,007,632.73
  5. Step 5: Solve for x
    x = 35,494,007,632.73/200,118.60
  6. Step 6: Final answer
    x = 177,364.86

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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.