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Finding the Fourth Proportional to 184,991.25, 255,287.91 and 100,108.31

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Solution

The fourth proportional to 184,991.25, 255,287.91 and 100,108.31 is: 138,149.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    184,991.25 : 255,287.91 = 100,108.31 : x
  2. Step 2: Convert to fraction form
    184,991.25/255,287.91 = 100,108.31/x
  3. Step 3: Cross multiply
    184,991.25x = 255,287.91 × 100,108.31
  4. Step 4: Simplify right side
    184,991.25x = 25,556,440,845.58
  5. Step 5: Solve for x
    x = 25,556,440,845.58/184,991.25
  6. Step 6: Final answer
    x = 138,149.46

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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.