Home / 123,982.11-185,990.69-39,722.57

Finding the Fourth Proportional to 123,982.11, 185,990.69 and 39,722.57

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Solution

The fourth proportional to 123,982.11, 185,990.69 and 39,722.57 is: 59,589.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,982.11 : 185,990.69 = 39,722.57 : x
  2. Step 2: Convert to fraction form
    123,982.11/185,990.69 = 39,722.57/x
  3. Step 3: Cross multiply
    123,982.11x = 185,990.69 × 39,722.57
  4. Step 4: Simplify right side
    123,982.11x = 7,388,027,074.31
  5. Step 5: Solve for x
    x = 7,388,027,074.31/123,982.11
  6. Step 6: Final answer
    x = 59,589.46

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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.