Home / 200,039.85-276,081.11-115,160.49

Finding the Fourth Proportional to 200,039.85, 276,081.11 and 115,160.49

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Solution

The fourth proportional to 200,039.85, 276,081.11 and 115,160.49 is: 158,936.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,039.85 : 276,081.11 = 115,160.49 : x
  2. Step 2: Convert to fraction form
    200,039.85/276,081.11 = 115,160.49/x
  3. Step 3: Cross multiply
    200,039.85x = 276,081.11 × 115,160.49
  4. Step 4: Simplify right side
    200,039.85x = 31,793,635,907.34
  5. Step 5: Solve for x
    x = 31,793,635,907.34/200,039.85
  6. Step 6: Final answer
    x = 158,936.51

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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.