Home / 198,427.66-273,873.49-122,012.51

Finding the Fourth Proportional to 198,427.66, 273,873.49 and 122,012.51

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Solution

The fourth proportional to 198,427.66, 273,873.49 and 122,012.51 is: 168,403.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,427.66 : 273,873.49 = 122,012.51 : x
  2. Step 2: Convert to fraction form
    198,427.66/273,873.49 = 122,012.51/x
  3. Step 3: Cross multiply
    198,427.66x = 273,873.49 × 122,012.51
  4. Step 4: Simplify right side
    198,427.66x = 33,415,990,567.99
  5. Step 5: Solve for x
    x = 33,415,990,567.99/198,427.66
  6. Step 6: Final answer
    x = 168,403.90

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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.