Home / 168,540.50-252,466.25-78,447.03

Finding the Fourth Proportional to 168,540.50, 252,466.25 and 78,447.03

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Solution

The fourth proportional to 168,540.50, 252,466.25 and 78,447.03 is: 117,510.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,540.50 : 252,466.25 = 78,447.03 : x
  2. Step 2: Convert to fraction form
    168,540.50/252,466.25 = 78,447.03/x
  3. Step 3: Cross multiply
    168,540.50x = 252,466.25 × 78,447.03
  4. Step 4: Simplify right side
    168,540.50x = 19,805,227,095.50
  5. Step 5: Solve for x
    x = 19,805,227,095.50/168,540.50
  6. Step 6: Final answer
    x = 117,510.20

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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.