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Finding the Fourth Proportional to 221,102.09, 305,121.89 and 125,614.02

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Solution

The fourth proportional to 221,102.09, 305,121.89 and 125,614.02 is: 173,347.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,102.09 : 305,121.89 = 125,614.02 : x
  2. Step 2: Convert to fraction form
    221,102.09/305,121.89 = 125,614.02/x
  3. Step 3: Cross multiply
    221,102.09x = 305,121.89 × 125,614.02
  4. Step 4: Simplify right side
    221,102.09x = 38,327,587,192.90
  5. Step 5: Solve for x
    x = 38,327,587,192.90/221,102.09
  6. Step 6: Final answer
    x = 173,347.92

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.