Home / 198,406.02-273,786.15-112,340.28

Finding the Fourth Proportional to 198,406.02, 273,786.15 and 112,340.28

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Solution

The fourth proportional to 198,406.02, 273,786.15 and 112,340.28 is: 155,021.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,406.02 : 273,786.15 = 112,340.28 : x
  2. Step 2: Convert to fraction form
    198,406.02/273,786.15 = 112,340.28/x
  3. Step 3: Cross multiply
    198,406.02x = 273,786.15 × 112,340.28
  4. Step 4: Simplify right side
    198,406.02x = 30,757,212,751.12
  5. Step 5: Solve for x
    x = 30,757,212,751.12/198,406.02
  6. Step 6: Final answer
    x = 155,021.57

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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.