Home / 199,588.07-274,963.68-139,049.21

Finding the Fourth Proportional to 199,588.07, 274,963.68 and 139,049.21

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Solution

The fourth proportional to 199,588.07, 274,963.68 and 139,049.21 is: 191,561.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,588.07 : 274,963.68 = 139,049.21 : x
  2. Step 2: Convert to fraction form
    199,588.07/274,963.68 = 139,049.21/x
  3. Step 3: Cross multiply
    199,588.07x = 274,963.68 × 139,049.21
  4. Step 4: Simplify right side
    199,588.07x = 38,233,481,107.87
  5. Step 5: Solve for x
    x = 38,233,481,107.87/199,588.07
  6. Step 6: Final answer
    x = 191,561.96

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1.5x scale

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.