Home / 200,588.37-276,842.45-128,022.59

Finding the Fourth Proportional to 200,588.37, 276,842.45 and 128,022.59

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Solution

The fourth proportional to 200,588.37, 276,842.45 and 128,022.59 is: 176,690.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,588.37 : 276,842.45 = 128,022.59 : x
  2. Step 2: Convert to fraction form
    200,588.37/276,842.45 = 128,022.59/x
  3. Step 3: Cross multiply
    200,588.37x = 276,842.45 × 128,022.59
  4. Step 4: Simplify right side
    200,588.37x = 35,442,086,724.82
  5. Step 5: Solve for x
    x = 35,442,086,724.82/200,588.37
  6. Step 6: Final answer
    x = 176,690.63

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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.