Home / 198,859.64-274,426.34-109,435.64

Finding the Fourth Proportional to 198,859.64, 274,426.34 and 109,435.64

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Solution

The fourth proportional to 198,859.64, 274,426.34 and 109,435.64 is: 151,021.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,859.64 : 274,426.34 = 109,435.64 : x
  2. Step 2: Convert to fraction form
    198,859.64/274,426.34 = 109,435.64/x
  3. Step 3: Cross multiply
    198,859.64x = 274,426.34 × 109,435.64
  4. Step 4: Simplify right side
    198,859.64x = 30,032,022,150.76
  5. Step 5: Solve for x
    x = 30,032,022,150.76/198,859.64
  6. Step 6: Final answer
    x = 151,021.20

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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.