Home / 168,103.18-252,191.67-49,783.78

Finding the Fourth Proportional to 168,103.18, 252,191.67 and 49,783.78

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Solution

The fourth proportional to 168,103.18, 252,191.67 and 49,783.78 is: 74,686.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,103.18 : 252,191.67 = 49,783.78 : x
  2. Step 2: Convert to fraction form
    168,103.18/252,191.67 = 49,783.78/x
  3. Step 3: Cross multiply
    168,103.18x = 252,191.67 × 49,783.78
  4. Step 4: Simplify right side
    168,103.18x = 12,555,054,617.11
  5. Step 5: Solve for x
    x = 12,555,054,617.11/168,103.18
  6. Step 6: Final answer
    x = 74,686.60

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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.