Home / 122,101.84-168,462.28-68,379.60

Finding the Fourth Proportional to 122,101.84, 168,462.28 and 68,379.60

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Solution

The fourth proportional to 122,101.84, 168,462.28 and 68,379.60 is: 94,342.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,101.84 : 168,462.28 = 68,379.60 : x
  2. Step 2: Convert to fraction form
    122,101.84/168,462.28 = 68,379.60/x
  3. Step 3: Cross multiply
    122,101.84x = 168,462.28 × 68,379.60
  4. Step 4: Simplify right side
    122,101.84x = 11,519,383,321.49
  5. Step 5: Solve for x
    x = 11,519,383,321.49/122,101.84
  6. Step 6: Final answer
    x = 94,342.42

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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.