Home / 106,043.40-159,066.20-31,164.88

Finding the Fourth Proportional to 106,043.40, 159,066.20 and 31,164.88

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Solution

The fourth proportional to 106,043.40, 159,066.20 and 31,164.88 is: 46,747.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,043.40 : 159,066.20 = 31,164.88 : x
  2. Step 2: Convert to fraction form
    106,043.40/159,066.20 = 31,164.88/x
  3. Step 3: Cross multiply
    106,043.40x = 159,066.20 × 31,164.88
  4. Step 4: Simplify right side
    106,043.40x = 4,957,278,481.57
  5. Step 5: Solve for x
    x = 4,957,278,481.57/106,043.40
  6. Step 6: Final answer
    x = 46,747.64

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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.