Home / 148,716.47-205,229.09-80,733.51

Finding the Fourth Proportional to 148,716.47, 205,229.09 and 80,733.51

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Solution

The fourth proportional to 148,716.47, 205,229.09 and 80,733.51 is: 111,412.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,716.47 : 205,229.09 = 80,733.51 : x
  2. Step 2: Convert to fraction form
    148,716.47/205,229.09 = 80,733.51/x
  3. Step 3: Cross multiply
    148,716.47x = 205,229.09 × 80,733.51
  4. Step 4: Simplify right side
    148,716.47x = 16,568,864,991.64
  5. Step 5: Solve for x
    x = 16,568,864,991.64/148,716.47
  6. Step 6: Final answer
    x = 111,412.44

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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.