Home / 189,621.20-261,679.56-104,747.60

Finding the Fourth Proportional to 189,621.20, 261,679.56 and 104,747.60

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Solution

The fourth proportional to 189,621.20, 261,679.56 and 104,747.60 is: 144,552.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,621.20 : 261,679.56 = 104,747.60 : x
  2. Step 2: Convert to fraction form
    189,621.20/261,679.56 = 104,747.60/x
  3. Step 3: Cross multiply
    189,621.20x = 261,679.56 × 104,747.60
  4. Step 4: Simplify right side
    189,621.20x = 27,410,305,879.06
  5. Step 5: Solve for x
    x = 27,410,305,879.06/189,621.20
  6. Step 6: Final answer
    x = 144,552.96

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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.