Home / 212,640.93-293,456.79-121,996.13

Finding the Fourth Proportional to 212,640.93, 293,456.79 and 121,996.13

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Solution

The fourth proportional to 212,640.93, 293,456.79 and 121,996.13 is: 168,361.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,640.93 : 293,456.79 = 121,996.13 : x
  2. Step 2: Convert to fraction form
    212,640.93/293,456.79 = 121,996.13/x
  3. Step 3: Cross multiply
    212,640.93x = 293,456.79 × 121,996.13
  4. Step 4: Simplify right side
    212,640.93x = 35,800,591,234.94
  5. Step 5: Solve for x
    x = 35,800,591,234.94/212,640.93
  6. Step 6: Final answer
    x = 168,361.71

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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.