Home / 203,086.36-280,288.68-117,028.60

Finding the Fourth Proportional to 203,086.36, 280,288.68 and 117,028.60

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Solution

The fourth proportional to 203,086.36, 280,288.68 and 117,028.60 is: 161,516.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,086.36 : 280,288.68 = 117,028.60 : x
  2. Step 2: Convert to fraction form
    203,086.36/280,288.68 = 117,028.60/x
  3. Step 3: Cross multiply
    203,086.36x = 280,288.68 × 117,028.60
  4. Step 4: Simplify right side
    203,086.36x = 32,801,791,816.25
  5. Step 5: Solve for x
    x = 32,801,791,816.25/203,086.36
  6. Step 6: Final answer
    x = 161,516.47

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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.