Home / 117,131.06-161,640.93-63,416.09

Finding the Fourth Proportional to 117,131.06, 161,640.93 and 63,416.09

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Solution

The fourth proportional to 117,131.06, 161,640.93 and 63,416.09 is: 87,514.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,131.06 : 161,640.93 = 63,416.09 : x
  2. Step 2: Convert to fraction form
    117,131.06/161,640.93 = 63,416.09/x
  3. Step 3: Cross multiply
    117,131.06x = 161,640.93 × 63,416.09
  4. Step 4: Simplify right side
    117,131.06x = 10,250,635,764.56
  5. Step 5: Solve for x
    x = 10,250,635,764.56/117,131.06
  6. Step 6: Final answer
    x = 87,514.24

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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.