Home / 147,891.56-204,188.92-87,481.64

Finding the Fourth Proportional to 147,891.56, 204,188.92 and 87,481.64

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Solution

The fourth proportional to 147,891.56, 204,188.92 and 87,481.64 is: 120,782.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,891.56 : 204,188.92 = 87,481.64 : x
  2. Step 2: Convert to fraction form
    147,891.56/204,188.92 = 87,481.64/x
  3. Step 3: Cross multiply
    147,891.56x = 204,188.92 × 87,481.64
  4. Step 4: Simplify right side
    147,891.56x = 17,862,781,591.43
  5. Step 5: Solve for x
    x = 17,862,781,591.43/147,891.56
  6. Step 6: Final answer
    x = 120,782.97

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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.