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Finding the Fourth Proportional to 118,234.45, 177,283.41 and 80,839.81

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Solution

The fourth proportional to 118,234.45, 177,283.41 and 80,839.81 is: 121,213.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,234.45 : 177,283.41 = 80,839.81 : x
  2. Step 2: Convert to fraction form
    118,234.45/177,283.41 = 80,839.81/x
  3. Step 3: Cross multiply
    118,234.45x = 177,283.41 × 80,839.81
  4. Step 4: Simplify right side
    118,234.45x = 14,331,557,180.55
  5. Step 5: Solve for x
    x = 14,331,557,180.55/118,234.45
  6. Step 6: Final answer
    x = 121,213.04

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Why These Related Problems?

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