Home / 198,435.15-273,832.65-117,860.54

Finding the Fourth Proportional to 198,435.15, 273,832.65 and 117,860.54

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Solution

The fourth proportional to 198,435.15, 273,832.65 and 117,860.54 is: 162,642.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,435.15 : 273,832.65 = 117,860.54 : x
  2. Step 2: Convert to fraction form
    198,435.15/273,832.65 = 117,860.54/x
  3. Step 3: Cross multiply
    198,435.15x = 273,832.65 × 117,860.54
  4. Step 4: Simplify right side
    198,435.15x = 32,274,062,629.47
  5. Step 5: Solve for x
    x = 32,274,062,629.47/198,435.15
  6. Step 6: Final answer
    x = 162,642.87

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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.