Home / 111,137.12-166,556.58-71,673.92

Finding the Fourth Proportional to 111,137.12, 166,556.58 and 71,673.92

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Solution

The fourth proportional to 111,137.12, 166,556.58 and 71,673.92 is: 107,414.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,137.12 : 166,556.58 = 71,673.92 : x
  2. Step 2: Convert to fraction form
    111,137.12/166,556.58 = 71,673.92/x
  3. Step 3: Cross multiply
    111,137.12x = 166,556.58 × 71,673.92
  4. Step 4: Simplify right side
    111,137.12x = 11,937,762,990.39
  5. Step 5: Solve for x
    x = 11,937,762,990.39/111,137.12
  6. Step 6: Final answer
    x = 107,414.72

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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.