Home / 221,100.56-305,126.96-125,623.44

Finding the Fourth Proportional to 221,100.56, 305,126.96 and 125,623.44

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Solution

The fourth proportional to 221,100.56, 305,126.96 and 125,623.44 is: 173,365.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,100.56 : 305,126.96 = 125,623.44 : x
  2. Step 2: Convert to fraction form
    221,100.56/305,126.96 = 125,623.44/x
  3. Step 3: Cross multiply
    221,100.56x = 305,126.96 × 125,623.44
  4. Step 4: Simplify right side
    221,100.56x = 38,331,098,351.94
  5. Step 5: Solve for x
    x = 38,331,098,351.94/221,100.56
  6. Step 6: Final answer
    x = 173,365.00

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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.