Home / 200,340.06-276,656.90-128,844.60

Finding the Fourth Proportional to 200,340.06, 276,656.90 and 128,844.60

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Solution

The fourth proportional to 200,340.06, 276,656.90 and 128,844.60 is: 177,926.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,340.06 : 276,656.90 = 128,844.60 : x
  2. Step 2: Convert to fraction form
    200,340.06/276,656.90 = 128,844.60/x
  3. Step 3: Cross multiply
    200,340.06x = 276,656.90 × 128,844.60
  4. Step 4: Simplify right side
    200,340.06x = 35,645,747,617.74
  5. Step 5: Solve for x
    x = 35,645,747,617.74/200,340.06
  6. Step 6: Final answer
    x = 177,926.21

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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.