Home / 140,121.82-210,195.78-55,861.57

Finding the Fourth Proportional to 140,121.82, 210,195.78 and 55,861.57

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Solution

The fourth proportional to 140,121.82, 210,195.78 and 55,861.57 is: 83,797.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,121.82 : 210,195.78 = 55,861.57 : x
  2. Step 2: Convert to fraction form
    140,121.82/210,195.78 = 55,861.57/x
  3. Step 3: Cross multiply
    140,121.82x = 210,195.78 × 55,861.57
  4. Step 4: Simplify right side
    140,121.82x = 11,741,866,278.17
  5. Step 5: Solve for x
    x = 11,741,866,278.17/140,121.82
  6. Step 6: Final answer
    x = 83,797.56

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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.