Home / 122,287.11-168,684.54-76,893.15

Finding the Fourth Proportional to 122,287.11, 168,684.54 and 76,893.15

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Solution

The fourth proportional to 122,287.11, 168,684.54 and 76,893.15 is: 106,067.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,287.11 : 168,684.54 = 76,893.15 : x
  2. Step 2: Convert to fraction form
    122,287.11/168,684.54 = 76,893.15/x
  3. Step 3: Cross multiply
    122,287.11x = 168,684.54 × 76,893.15
  4. Step 4: Simplify right side
    122,287.11x = 12,970,685,636.90
  5. Step 5: Solve for x
    x = 12,970,685,636.90/122,287.11
  6. Step 6: Final answer
    x = 106,067.48

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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.