Home / 197,821.27-272,993.39-107,177.86

Finding the Fourth Proportional to 197,821.27, 272,993.39 and 107,177.86

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Solution

The fourth proportional to 197,821.27, 272,993.39 and 107,177.86 is: 147,905.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,821.27 : 272,993.39 = 107,177.86 : x
  2. Step 2: Convert to fraction form
    197,821.27/272,993.39 = 107,177.86/x
  3. Step 3: Cross multiply
    197,821.27x = 272,993.39 × 107,177.86
  4. Step 4: Simplify right side
    197,821.27x = 29,258,847,334.35
  5. Step 5: Solve for x
    x = 29,258,847,334.35/197,821.27
  6. Step 6: Final answer
    x = 147,905.47

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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.