Home / 189,120.56-283,385.24-109,207.60

Finding the Fourth Proportional to 189,120.56, 283,385.24 and 109,207.60

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Solution

The fourth proportional to 189,120.56, 283,385.24 and 109,207.60 is: 163,640.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,120.56 : 283,385.24 = 109,207.60 : x
  2. Step 2: Convert to fraction form
    189,120.56/283,385.24 = 109,207.60/x
  3. Step 3: Cross multiply
    189,120.56x = 283,385.24 × 109,207.60
  4. Step 4: Simplify right side
    189,120.56x = 30,947,821,935.82
  5. Step 5: Solve for x
    x = 30,947,821,935.82/189,120.56
  6. Step 6: Final answer
    x = 163,640.71

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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.