Home / 168,402.79-252,433.27-143,823.65

Finding the Fourth Proportional to 168,402.79, 252,433.27 and 143,823.65

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Solution

The fourth proportional to 168,402.79, 252,433.27 and 143,823.65 is: 215,589.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,402.79 : 252,433.27 = 143,823.65 : x
  2. Step 2: Convert to fraction form
    168,402.79/252,433.27 = 143,823.65/x
  3. Step 3: Cross multiply
    168,402.79x = 252,433.27 × 143,823.65
  4. Step 4: Simplify right side
    168,402.79x = 36,305,872,651.11
  5. Step 5: Solve for x
    x = 36,305,872,651.11/168,402.79
  6. Step 6: Final answer
    x = 215,589.50

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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.