Home / 168,105.36-231,881.75-102,663.49

Finding the Fourth Proportional to 168,105.36, 231,881.75 and 102,663.49

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Solution

The fourth proportional to 168,105.36, 231,881.75 and 102,663.49 is: 141,612.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,105.36 : 231,881.75 = 102,663.49 : x
  2. Step 2: Convert to fraction form
    168,105.36/231,881.75 = 102,663.49/x
  3. Step 3: Cross multiply
    168,105.36x = 231,881.75 × 102,663.49
  4. Step 4: Simplify right side
    168,105.36x = 23,805,789,722.31
  5. Step 5: Solve for x
    x = 23,805,789,722.31/168,105.36
  6. Step 6: Final answer
    x = 141,612.32

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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.