Home / 111,383.11-166,996.90-55,154.53

Finding the Fourth Proportional to 111,383.11, 166,996.90 and 55,154.53

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Solution

The fourth proportional to 111,383.11, 166,996.90 and 55,154.53 is: 82,693.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,383.11 : 166,996.90 = 55,154.53 : x
  2. Step 2: Convert to fraction form
    111,383.11/166,996.90 = 55,154.53/x
  3. Step 3: Cross multiply
    111,383.11x = 166,996.90 × 55,154.53
  4. Step 4: Simplify right side
    111,383.11x = 9,210,635,530.96
  5. Step 5: Solve for x
    x = 9,210,635,530.96/111,383.11
  6. Step 6: Final answer
    x = 82,693.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.