Home / 168,013.72-251,946.30-89,109.88

Finding the Fourth Proportional to 168,013.72, 251,946.30 and 89,109.88

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Solution

The fourth proportional to 168,013.72, 251,946.30 and 89,109.88 is: 133,625.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,013.72 : 251,946.30 = 89,109.88 : x
  2. Step 2: Convert to fraction form
    168,013.72/251,946.30 = 89,109.88/x
  3. Step 3: Cross multiply
    168,013.72x = 251,946.30 × 89,109.88
  4. Step 4: Simplify right side
    168,013.72x = 22,450,904,559.44
  5. Step 5: Solve for x
    x = 22,450,904,559.44/168,013.72
  6. Step 6: Final answer
    x = 133,625.42

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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.