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Finding the Fourth Proportional to 155,522.78, 214,621.41 and 88,454.78

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Solution

The fourth proportional to 155,522.78, 214,621.41 and 88,454.78 is: 122,067.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,522.78 : 214,621.41 = 88,454.78 : x
  2. Step 2: Convert to fraction form
    155,522.78/214,621.41 = 88,454.78/x
  3. Step 3: Cross multiply
    155,522.78x = 214,621.41 × 88,454.78
  4. Step 4: Simplify right side
    155,522.78x = 18,984,289,604.84
  5. Step 5: Solve for x
    x = 18,984,289,604.84/155,522.78
  6. Step 6: Final answer
    x = 122,067.58

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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.