Home / 168,102.18-252,190.17-49,782.78

Finding the Fourth Proportional to 168,102.18, 252,190.17 and 49,782.78

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Solution

The fourth proportional to 168,102.18, 252,190.17 and 49,782.78 is: 74,685.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,102.18 : 252,190.17 = 49,782.78 : x
  2. Step 2: Convert to fraction form
    168,102.18/252,190.17 = 49,782.78/x
  3. Step 3: Cross multiply
    168,102.18x = 252,190.17 × 49,782.78
  4. Step 4: Simplify right side
    168,102.18x = 12,554,727,751.27
  5. Step 5: Solve for x
    x = 12,554,727,751.27/168,102.18
  6. Step 6: Final answer
    x = 74,685.10

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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.