Home / 168,623.10-253,059.39-79,876.80

Finding the Fourth Proportional to 168,623.10, 253,059.39 and 79,876.80

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Solution

The fourth proportional to 168,623.10, 253,059.39 and 79,876.80 is: 119,874.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,623.10 : 253,059.39 = 79,876.80 : x
  2. Step 2: Convert to fraction form
    168,623.10/253,059.39 = 79,876.80/x
  3. Step 3: Cross multiply
    168,623.10x = 253,059.39 × 79,876.80
  4. Step 4: Simplify right side
    168,623.10x = 20,213,574,283.15
  5. Step 5: Solve for x
    x = 20,213,574,283.15/168,623.10
  6. Step 6: Final answer
    x = 119,874.29

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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.