Home / 122,427.37-168,949.77-68,712.39

Finding the Fourth Proportional to 122,427.37, 168,949.77 and 68,712.39

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Solution

The fourth proportional to 122,427.37, 168,949.77 and 68,712.39 is: 94,823.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,427.37 : 168,949.77 = 68,712.39 : x
  2. Step 2: Convert to fraction form
    122,427.37/168,949.77 = 68,712.39/x
  3. Step 3: Cross multiply
    122,427.37x = 168,949.77 × 68,712.39
  4. Step 4: Simplify right side
    122,427.37x = 11,608,942,486.65
  5. Step 5: Solve for x
    x = 11,608,942,486.65/122,427.37
  6. Step 6: Final answer
    x = 94,823.10

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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.