Home / 198,453.09-273,865.79-107,808.32

Finding the Fourth Proportional to 198,453.09, 273,865.79 and 107,808.32

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Solution

The fourth proportional to 198,453.09, 273,865.79 and 107,808.32 is: 148,775.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,453.09 : 273,865.79 = 107,808.32 : x
  2. Step 2: Convert to fraction form
    198,453.09/273,865.79 = 107,808.32/x
  3. Step 3: Cross multiply
    198,453.09x = 273,865.79 × 107,808.32
  4. Step 4: Simplify right side
    198,453.09x = 29,525,008,817.00
  5. Step 5: Solve for x
    x = 29,525,008,817.00/198,453.09
  6. Step 6: Final answer
    x = 148,775.76

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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.