Home / 198,493.56-273,813.24-121,985.04

Finding the Fourth Proportional to 198,493.56, 273,813.24 and 121,985.04

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Solution

The fourth proportional to 198,493.56, 273,813.24 and 121,985.04 is: 168,273.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,493.56 : 273,813.24 = 121,985.04 : x
  2. Step 2: Convert to fraction form
    198,493.56/273,813.24 = 121,985.04/x
  3. Step 3: Cross multiply
    198,493.56x = 273,813.24 × 121,985.04
  4. Step 4: Simplify right side
    198,493.56x = 33,401,119,033.93
  5. Step 5: Solve for x
    x = 33,401,119,033.93/198,493.56
  6. Step 6: Final answer
    x = 168,273.06

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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.