Home / 221,577.09-305,772.46-126,081.73

Finding the Fourth Proportional to 221,577.09, 305,772.46 and 126,081.73

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Solution

The fourth proportional to 221,577.09, 305,772.46 and 126,081.73 is: 173,990.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,577.09 : 305,772.46 = 126,081.73 : x
  2. Step 2: Convert to fraction form
    221,577.09/305,772.46 = 126,081.73/x
  3. Step 3: Cross multiply
    221,577.09x = 305,772.46 × 126,081.73
  4. Step 4: Simplify right side
    221,577.09x = 38,552,320,743.16
  5. Step 5: Solve for x
    x = 38,552,320,743.16/221,577.09
  6. Step 6: Final answer
    x = 173,990.55

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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.