Home / 136,481.82-188,340.12-76,049.34

Finding the Fourth Proportional to 136,481.82, 188,340.12 and 76,049.34

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Solution

The fourth proportional to 136,481.82, 188,340.12 and 76,049.34 is: 104,945.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,481.82 : 188,340.12 = 76,049.34 : x
  2. Step 2: Convert to fraction form
    136,481.82/188,340.12 = 76,049.34/x
  3. Step 3: Cross multiply
    136,481.82x = 188,340.12 × 76,049.34
  4. Step 4: Simplify right side
    136,481.82x = 14,323,141,821.52
  5. Step 5: Solve for x
    x = 14,323,141,821.52/136,481.82
  6. Step 6: Final answer
    x = 104,945.42

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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.