Home / 197,659.36-272,768-107,012.96

Finding the Fourth Proportional to 197,659.36, 272,768 and 107,012.96

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Solution

The fourth proportional to 197,659.36, 272,768 and 107,012.96 is: 147,676.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,659.36 : 272,768 = 107,012.96 : x
  2. Step 2: Convert to fraction form
    197,659.36/272,768 = 107,012.96/x
  3. Step 3: Cross multiply
    197,659.36x = 272,768 × 107,012.96
  4. Step 4: Simplify right side
    197,659.36x = 29,189,711,073.28
  5. Step 5: Solve for x
    x = 29,189,711,073.28/197,659.36
  6. Step 6: Final answer
    x = 147,676.85

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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.