Home / 187,192.54-280,786.38-121,057.66

Finding the Fourth Proportional to 187,192.54, 280,786.38 and 121,057.66

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Solution

The fourth proportional to 187,192.54, 280,786.38 and 121,057.66 is: 181,584.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,192.54 : 280,786.38 = 121,057.66 : x
  2. Step 2: Convert to fraction form
    187,192.54/280,786.38 = 121,057.66/x
  3. Step 3: Cross multiply
    187,192.54x = 280,786.38 × 121,057.66
  4. Step 4: Simplify right side
    187,192.54x = 33,991,342,122.67
  5. Step 5: Solve for x
    x = 33,991,342,122.67/187,192.54
  6. Step 6: Final answer
    x = 181,584.92

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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.