Home / 118,128.51-177,092.22-51,518.97

Finding the Fourth Proportional to 118,128.51, 177,092.22 and 51,518.97

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Solution

The fourth proportional to 118,128.51, 177,092.22 and 51,518.97 is: 77,234.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,128.51 : 177,092.22 = 51,518.97 : x
  2. Step 2: Convert to fraction form
    118,128.51/177,092.22 = 51,518.97/x
  3. Step 3: Cross multiply
    118,128.51x = 177,092.22 × 51,518.97
  4. Step 4: Simplify right side
    118,128.51x = 9,123,608,962.61
  5. Step 5: Solve for x
    x = 9,123,608,962.61/118,128.51
  6. Step 6: Final answer
    x = 77,234.61

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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.