Home / 197,987.40-273,196.56-111,958.20

Finding the Fourth Proportional to 197,987.40, 273,196.56 and 111,958.20

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Solution

The fourth proportional to 197,987.40, 273,196.56 and 111,958.20 is: 154,487.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,987.40 : 273,196.56 = 111,958.20 : x
  2. Step 2: Convert to fraction form
    197,987.40/273,196.56 = 111,958.20/x
  3. Step 3: Cross multiply
    197,987.40x = 273,196.56 × 111,958.20
  4. Step 4: Simplify right side
    197,987.40x = 30,586,595,103.79
  5. Step 5: Solve for x
    x = 30,586,595,103.79/197,987.40
  6. Step 6: Final answer
    x = 154,487.58

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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.