Home / 123,936.72-185,752.80-57,286.68

Finding the Fourth Proportional to 123,936.72, 185,752.80 and 57,286.68

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Solution

The fourth proportional to 123,936.72, 185,752.80 and 57,286.68 is: 85,859.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,936.72 : 185,752.80 = 57,286.68 : x
  2. Step 2: Convert to fraction form
    123,936.72/185,752.80 = 57,286.68/x
  3. Step 3: Cross multiply
    123,936.72x = 185,752.80 × 57,286.68
  4. Step 4: Simplify right side
    123,936.72x = 10,641,161,212.70
  5. Step 5: Solve for x
    x = 10,641,161,212.70/123,936.72
  6. Step 6: Final answer
    x = 85,859.63

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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.