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Finding the Fourth Proportional to 122,006, 168,368.24 and 68,291

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Solution

The fourth proportional to 122,006, 168,368.24 and 68,291 is: 94,241.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,006 : 168,368.24 = 68,291 : x
  2. Step 2: Convert to fraction form
    122,006/168,368.24 = 68,291/x
  3. Step 3: Cross multiply
    122,006x = 168,368.24 × 68,291
  4. Step 4: Simplify right side
    122,006x = 11,498,035,477.84
  5. Step 5: Solve for x
    x = 11,498,035,477.84/122,006
  6. Step 6: Final answer
    x = 94,241.56

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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.