Home / 200,338.06-276,654.14-128,842.60

Finding the Fourth Proportional to 200,338.06, 276,654.14 and 128,842.60

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Solution

The fourth proportional to 200,338.06, 276,654.14 and 128,842.60 is: 177,923.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,338.06 : 276,654.14 = 128,842.60 : x
  2. Step 2: Convert to fraction form
    200,338.06/276,654.14 = 128,842.60/x
  3. Step 3: Cross multiply
    200,338.06x = 276,654.14 × 128,842.60
  4. Step 4: Simplify right side
    200,338.06x = 35,644,838,698.36
  5. Step 5: Solve for x
    x = 35,644,838,698.36/200,338.06
  6. Step 6: Final answer
    x = 177,923.45

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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.