Home / 200,582.58-276,834.44-128,016.78

Finding the Fourth Proportional to 200,582.58, 276,834.44 and 128,016.78

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Solution

The fourth proportional to 200,582.58, 276,834.44 and 128,016.78 is: 176,682.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,582.58 : 276,834.44 = 128,016.78 : x
  2. Step 2: Convert to fraction form
    200,582.58/276,834.44 = 128,016.78/x
  3. Step 3: Cross multiply
    200,582.58x = 276,834.44 × 128,016.78
  4. Step 4: Simplify right side
    200,582.58x = 35,439,453,921.95
  5. Step 5: Solve for x
    x = 35,439,453,921.95/200,582.58
  6. Step 6: Final answer
    x = 176,682.61

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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.