Home / 122,076.11-168,523.40-81,308.04

Finding the Fourth Proportional to 122,076.11, 168,523.40 and 81,308.04

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Solution

The fourth proportional to 122,076.11, 168,523.40 and 81,308.04 is: 112,243.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,076.11 : 168,523.40 = 81,308.04 : x
  2. Step 2: Convert to fraction form
    122,076.11/168,523.40 = 81,308.04/x
  3. Step 3: Cross multiply
    122,076.11x = 168,523.40 × 81,308.04
  4. Step 4: Simplify right side
    122,076.11x = 13,702,306,919.44
  5. Step 5: Solve for x
    x = 13,702,306,919.44/122,076.11
  6. Step 6: Final answer
    x = 112,243.97

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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.