Home / 198,371.56-273,686.16-112,318.80

Finding the Fourth Proportional to 198,371.56, 273,686.16 and 112,318.80

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Solution

The fourth proportional to 198,371.56, 273,686.16 and 112,318.80 is: 154,962.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,371.56 : 273,686.16 = 112,318.80 : x
  2. Step 2: Convert to fraction form
    198,371.56/273,686.16 = 112,318.80/x
  3. Step 3: Cross multiply
    198,371.56x = 273,686.16 × 112,318.80
  4. Step 4: Simplify right side
    198,371.56x = 30,740,101,067.81
  5. Step 5: Solve for x
    x = 30,740,101,067.81/198,371.56
  6. Step 6: Final answer
    x = 154,962.24

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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.