Home / 112,426.20-168,556.28-68,043.20

Finding the Fourth Proportional to 112,426.20, 168,556.28 and 68,043.20

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Solution

The fourth proportional to 112,426.20, 168,556.28 and 68,043.20 is: 102,014.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,426.20 : 168,556.28 = 68,043.20 : x
  2. Step 2: Convert to fraction form
    112,426.20/168,556.28 = 68,043.20/x
  3. Step 3: Cross multiply
    112,426.20x = 168,556.28 × 68,043.20
  4. Step 4: Simplify right side
    112,426.20x = 11,469,107,488.30
  5. Step 5: Solve for x
    x = 11,469,107,488.30/112,426.20
  6. Step 6: Final answer
    x = 102,014.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.