Home / 149,236.24-205,965.66-85,561.60

Finding the Fourth Proportional to 149,236.24, 205,965.66 and 85,561.60

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Solution

The fourth proportional to 149,236.24, 205,965.66 and 85,561.60 is: 118,086.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,236.24 : 205,965.66 = 85,561.60 : x
  2. Step 2: Convert to fraction form
    149,236.24/205,965.66 = 85,561.60/x
  3. Step 3: Cross multiply
    149,236.24x = 205,965.66 × 85,561.60
  4. Step 4: Simplify right side
    149,236.24x = 17,622,751,414.66
  5. Step 5: Solve for x
    x = 17,622,751,414.66/149,236.24
  6. Step 6: Final answer
    x = 118,086.27

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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.