Home / 144,022.52-198,786.66-87,481.28

Finding the Fourth Proportional to 144,022.52, 198,786.66 and 87,481.28

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Solution

The fourth proportional to 144,022.52, 198,786.66 and 87,481.28 is: 120,745.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,022.52 : 198,786.66 = 87,481.28 : x
  2. Step 2: Convert to fraction form
    144,022.52/198,786.66 = 87,481.28/x
  3. Step 3: Cross multiply
    144,022.52x = 198,786.66 × 87,481.28
  4. Step 4: Simplify right side
    144,022.52x = 17,390,111,632.64
  5. Step 5: Solve for x
    x = 17,390,111,632.64/144,022.52
  6. Step 6: Final answer
    x = 120,745.78

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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.