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Finding the Fourth Proportional to 115,469.70, 173,204.55 and 92,141.70

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Solution

The fourth proportional to 115,469.70, 173,204.55 and 92,141.70 is: 138,212.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,469.70 : 173,204.55 = 92,141.70 : x
  2. Step 2: Convert to fraction form
    115,469.70/173,204.55 = 92,141.70/x
  3. Step 3: Cross multiply
    115,469.70x = 173,204.55 × 92,141.70
  4. Step 4: Simplify right side
    115,469.70x = 15,959,361,684.74
  5. Step 5: Solve for x
    x = 15,959,361,684.74/115,469.70
  6. Step 6: Final answer
    x = 138,212.55

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.