Home / 198,420.82-273,825.73-107,776.76

Finding the Fourth Proportional to 198,420.82, 273,825.73 and 107,776.76

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Solution

The fourth proportional to 198,420.82, 273,825.73 and 107,776.76 is: 148,734.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,420.82 : 273,825.73 = 107,776.76 : x
  2. Step 2: Convert to fraction form
    198,420.82/273,825.73 = 107,776.76/x
  3. Step 3: Cross multiply
    198,420.82x = 273,825.73 × 107,776.76
  4. Step 4: Simplify right side
    198,420.82x = 29,512,049,776.47
  5. Step 5: Solve for x
    x = 29,512,049,776.47/198,420.82
  6. Step 6: Final answer
    x = 148,734.64

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1.5x scale

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.