Home / 213,839.05-295,163.67-123,255.56

Finding the Fourth Proportional to 213,839.05, 295,163.67 and 123,255.56

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Solution

The fourth proportional to 213,839.05, 295,163.67 and 123,255.56 is: 170,130.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,839.05 : 295,163.67 = 123,255.56 : x
  2. Step 2: Convert to fraction form
    213,839.05/295,163.67 = 123,255.56/x
  3. Step 3: Cross multiply
    213,839.05x = 295,163.67 × 123,255.56
  4. Step 4: Simplify right side
    213,839.05x = 36,380,563,875.89
  5. Step 5: Solve for x
    x = 36,380,563,875.89/213,839.05
  6. Step 6: Final answer
    x = 170,130.59

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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.