Home / 198,398.30-273,791.63-107,756.03

Finding the Fourth Proportional to 198,398.30, 273,791.63 and 107,756.03

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Solution

The fourth proportional to 198,398.30, 273,791.63 and 107,756.03 is: 148,704.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,398.30 : 273,791.63 = 107,756.03 : x
  2. Step 2: Convert to fraction form
    198,398.30/273,791.63 = 107,756.03/x
  3. Step 3: Cross multiply
    198,398.30x = 273,791.63 × 107,756.03
  4. Step 4: Simplify right side
    198,398.30x = 29,502,700,049.90
  5. Step 5: Solve for x
    x = 29,502,700,049.90/198,398.30
  6. Step 6: Final answer
    x = 148,704.40

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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.