Home / 117,961.95-177,054.03-78,546.54

Finding the Fourth Proportional to 117,961.95, 177,054.03 and 78,546.54

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Solution

The fourth proportional to 117,961.95, 177,054.03 and 78,546.54 is: 117,893.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,961.95 : 177,054.03 = 78,546.54 : x
  2. Step 2: Convert to fraction form
    117,961.95/177,054.03 = 78,546.54/x
  3. Step 3: Cross multiply
    117,961.95x = 177,054.03 × 78,546.54
  4. Step 4: Simplify right side
    117,961.95x = 13,906,981,449.56
  5. Step 5: Solve for x
    x = 13,906,981,449.56/117,961.95
  6. Step 6: Final answer
    x = 117,893.79

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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.