Home / 197,682.96-272,781.60-111,636.78

Finding the Fourth Proportional to 197,682.96, 272,781.60 and 111,636.78

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Solution

The fourth proportional to 197,682.96, 272,781.60 and 111,636.78 is: 154,046.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,682.96 : 272,781.60 = 111,636.78 : x
  2. Step 2: Convert to fraction form
    197,682.96/272,781.60 = 111,636.78/x
  3. Step 3: Cross multiply
    197,682.96x = 272,781.60 × 111,636.78
  4. Step 4: Simplify right side
    197,682.96x = 30,452,459,467.25
  5. Step 5: Solve for x
    x = 30,452,459,467.25/197,682.96
  6. Step 6: Final answer
    x = 154,046.96

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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.