Home / 168,215.72-251,961.75-79,336.04

Finding the Fourth Proportional to 168,215.72, 251,961.75 and 79,336.04

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Solution

The fourth proportional to 168,215.72, 251,961.75 and 79,336.04 is: 118,833.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,215.72 : 251,961.75 = 79,336.04 : x
  2. Step 2: Convert to fraction form
    168,215.72/251,961.75 = 79,336.04/x
  3. Step 3: Cross multiply
    168,215.72x = 251,961.75 × 79,336.04
  4. Step 4: Simplify right side
    168,215.72x = 19,989,646,216.66
  5. Step 5: Solve for x
    x = 19,989,646,216.66/168,215.72
  6. Step 6: Final answer
    x = 118,833.41

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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.