Home / 124,949.60-172,434.56-68,359.68

Finding the Fourth Proportional to 124,949.60, 172,434.56 and 68,359.68

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Solution

The fourth proportional to 124,949.60, 172,434.56 and 68,359.68 is: 94,338.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,949.60 : 172,434.56 = 68,359.68 : x
  2. Step 2: Convert to fraction form
    124,949.60/172,434.56 = 68,359.68/x
  3. Step 3: Cross multiply
    124,949.60x = 172,434.56 × 68,359.68
  4. Step 4: Simplify right side
    124,949.60x = 11,787,571,342.54
  5. Step 5: Solve for x
    x = 11,787,571,342.54/124,949.60
  6. Step 6: Final answer
    x = 94,338.61

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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.