Home / 197,819.69-272,990.79-107,177.91

Finding the Fourth Proportional to 197,819.69, 272,990.79 and 107,177.91

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Solution

The fourth proportional to 197,819.69, 272,990.79 and 107,177.91 is: 147,905.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,819.69 : 272,990.79 = 107,177.91 : x
  2. Step 2: Convert to fraction form
    197,819.69/272,990.79 = 107,177.91/x
  3. Step 3: Cross multiply
    197,819.69x = 272,990.79 × 107,177.91
  4. Step 4: Simplify right side
    197,819.69x = 29,258,582,321.45
  5. Step 5: Solve for x
    x = 29,258,582,321.45/197,819.69
  6. Step 6: Final answer
    x = 147,905.31

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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.