Home / 120,795.41-166,503.77-82,021.12

Finding the Fourth Proportional to 120,795.41, 166,503.77 and 82,021.12

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Solution

The fourth proportional to 120,795.41, 166,503.77 and 82,021.12 is: 113,057.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,795.41 : 166,503.77 = 82,021.12 : x
  2. Step 2: Convert to fraction form
    120,795.41/166,503.77 = 82,021.12/x
  3. Step 3: Cross multiply
    120,795.41x = 166,503.77 × 82,021.12
  4. Step 4: Simplify right side
    120,795.41x = 13,656,825,488.42
  5. Step 5: Solve for x
    x = 13,656,825,488.42/120,795.41
  6. Step 6: Final answer
    x = 113,057.48

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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.