Home / 206,839.77-285,190.54-149,387.28

Finding the Fourth Proportional to 206,839.77, 285,190.54 and 149,387.28

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Solution

The fourth proportional to 206,839.77, 285,190.54 and 149,387.28 is: 205,975.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,839.77 : 285,190.54 = 149,387.28 : x
  2. Step 2: Convert to fraction form
    206,839.77/285,190.54 = 149,387.28/x
  3. Step 3: Cross multiply
    206,839.77x = 285,190.54 × 149,387.28
  4. Step 4: Simplify right side
    206,839.77x = 42,603,839,052.33
  5. Step 5: Solve for x
    x = 42,603,839,052.33/206,839.77
  6. Step 6: Final answer
    x = 205,975.08

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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.