Home / 221,110.03-305,112.54-122,974.48

Finding the Fourth Proportional to 221,110.03, 305,112.54 and 122,974.48

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Solution

The fourth proportional to 221,110.03, 305,112.54 and 122,974.48 is: 169,694.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,110.03 : 305,112.54 = 122,974.48 : x
  2. Step 2: Convert to fraction form
    221,110.03/305,112.54 = 122,974.48/x
  3. Step 3: Cross multiply
    221,110.03x = 305,112.54 × 122,974.48
  4. Step 4: Simplify right side
    221,110.03x = 37,521,055,947.98
  5. Step 5: Solve for x
    x = 37,521,055,947.98/221,110.03
  6. Step 6: Final answer
    x = 169,694.05

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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.