Home / 198,142.97-273,432.58-109,735.72

Finding the Fourth Proportional to 198,142.97, 273,432.58 and 109,735.72

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Solution

The fourth proportional to 198,142.97, 273,432.58 and 109,735.72 is: 151,432.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,142.97 : 273,432.58 = 109,735.72 : x
  2. Step 2: Convert to fraction form
    198,142.97/273,432.58 = 109,735.72/x
  3. Step 3: Cross multiply
    198,142.97x = 273,432.58 × 109,735.72
  4. Step 4: Simplify right side
    198,142.97x = 30,005,320,079.84
  5. Step 5: Solve for x
    x = 30,005,320,079.84/198,142.97
  6. Step 6: Final answer
    x = 151,432.68

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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.