Home / 206,922.53-309,771.43-127,782.29

Finding the Fourth Proportional to 206,922.53, 309,771.43 and 127,782.29

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Solution

The fourth proportional to 206,922.53, 309,771.43 and 127,782.29 is: 191,295.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,922.53 : 309,771.43 = 127,782.29 : x
  2. Step 2: Convert to fraction form
    206,922.53/309,771.43 = 127,782.29/x
  3. Step 3: Cross multiply
    206,922.53x = 309,771.43 × 127,782.29
  4. Step 4: Simplify right side
    206,922.53x = 39,583,302,701.97
  5. Step 5: Solve for x
    x = 39,583,302,701.97/206,922.53
  6. Step 6: Final answer
    x = 191,295.28

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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.