Home / 112,664.52-168,936.17-45,162.68

Finding the Fourth Proportional to 112,664.52, 168,936.17 and 45,162.68

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Solution

The fourth proportional to 112,664.52, 168,936.17 and 45,162.68 is: 67,719.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,664.52 : 168,936.17 = 45,162.68 : x
  2. Step 2: Convert to fraction form
    112,664.52/168,936.17 = 45,162.68/x
  3. Step 3: Cross multiply
    112,664.52x = 168,936.17 × 45,162.68
  4. Step 4: Simplify right side
    112,664.52x = 7,629,609,115.64
  5. Step 5: Solve for x
    x = 7,629,609,115.64/112,664.52
  6. Step 6: Final answer
    x = 67,719.71

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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.