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Finding the Fourth Proportional to 136,997.25, 205,496.28 and 53,891.25

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Solution

The fourth proportional to 136,997.25, 205,496.28 and 53,891.25 is: 80,837.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,997.25 : 205,496.28 = 53,891.25 : x
  2. Step 2: Convert to fraction form
    136,997.25/205,496.28 = 53,891.25/x
  3. Step 3: Cross multiply
    136,997.25x = 205,496.28 × 53,891.25
  4. Step 4: Simplify right side
    136,997.25x = 11,074,451,399.55
  5. Step 5: Solve for x
    x = 11,074,451,399.55/136,997.25
  6. Step 6: Final answer
    x = 80,837.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.