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Finding the Fourth Proportional to 161,279.46, 222,571.36 and 88,687.90

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Solution

The fourth proportional to 161,279.46, 222,571.36 and 88,687.90 is: 122,392.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,279.46 : 222,571.36 = 88,687.90 : x
  2. Step 2: Convert to fraction form
    161,279.46/222,571.36 = 88,687.90/x
  3. Step 3: Cross multiply
    161,279.46x = 222,571.36 × 88,687.90
  4. Step 4: Simplify right side
    161,279.46x = 19,739,386,907.62
  5. Step 5: Solve for x
    x = 19,739,386,907.62/161,279.46
  6. Step 6: Final answer
    x = 122,392.44

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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.