Home / 193,189-266,600.82-112,619.92

Finding the Fourth Proportional to 193,189, 266,600.82 and 112,619.92

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Solution

The fourth proportional to 193,189, 266,600.82 and 112,619.92 is: 155,415.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,189 : 266,600.82 = 112,619.92 : x
  2. Step 2: Convert to fraction form
    193,189/266,600.82 = 112,619.92/x
  3. Step 3: Cross multiply
    193,189x = 266,600.82 × 112,619.92
  4. Step 4: Simplify right side
    193,189x = 30,024,563,020.33
  5. Step 5: Solve for x
    x = 30,024,563,020.33/193,189
  6. Step 6: Final answer
    x = 155,415.49

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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.