Home / 143,696.39-215,519.94-38,490.75

Finding the Fourth Proportional to 143,696.39, 215,519.94 and 38,490.75

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Solution

The fourth proportional to 143,696.39, 215,519.94 and 38,490.75 is: 57,729.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,696.39 : 215,519.94 = 38,490.75 : x
  2. Step 2: Convert to fraction form
    143,696.39/215,519.94 = 38,490.75/x
  3. Step 3: Cross multiply
    143,696.39x = 215,519.94 × 38,490.75
  4. Step 4: Simplify right side
    143,696.39x = 8,295,524,130.56
  5. Step 5: Solve for x
    x = 8,295,524,130.56/143,696.39
  6. Step 6: Final answer
    x = 57,729.53

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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.