Home / 152,912.09-211,003.22-89,286.78

Finding the Fourth Proportional to 152,912.09, 211,003.22 and 89,286.78

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Solution

The fourth proportional to 152,912.09, 211,003.22 and 89,286.78 is: 123,206.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,912.09 : 211,003.22 = 89,286.78 : x
  2. Step 2: Convert to fraction form
    152,912.09/211,003.22 = 89,286.78/x
  3. Step 3: Cross multiply
    152,912.09x = 211,003.22 × 89,286.78
  4. Step 4: Simplify right side
    152,912.09x = 18,839,797,637.00
  5. Step 5: Solve for x
    x = 18,839,797,637.00/152,912.09
  6. Step 6: Final answer
    x = 123,206.73

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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.