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Finding the Fourth Proportional to 161,375.47, 222,671.09 and 89,745.91

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Solution

The fourth proportional to 161,375.47, 222,671.09 and 89,745.91 is: 123,834.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,375.47 : 222,671.09 = 89,745.91 : x
  2. Step 2: Convert to fraction form
    161,375.47/222,671.09 = 89,745.91/x
  3. Step 3: Cross multiply
    161,375.47x = 222,671.09 × 89,745.91
  4. Step 4: Simplify right side
    161,375.47x = 19,983,819,270.43
  5. Step 5: Solve for x
    x = 19,983,819,270.43/161,375.47
  6. Step 6: Final answer
    x = 123,834.31

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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.