Home / 198,410.91-273,809.04-107,768.64

Finding the Fourth Proportional to 198,410.91, 273,809.04 and 107,768.64

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Solution

The fourth proportional to 198,410.91, 273,809.04 and 107,768.64 is: 148,721.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,410.91 : 273,809.04 = 107,768.64 : x
  2. Step 2: Convert to fraction form
    198,410.91/273,809.04 = 107,768.64/x
  3. Step 3: Cross multiply
    198,410.91x = 273,809.04 × 107,768.64
  4. Step 4: Simplify right side
    198,410.91x = 29,508,027,860.51
  5. Step 5: Solve for x
    x = 29,508,027,860.51/198,410.91
  6. Step 6: Final answer
    x = 148,721.80

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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.