Home / 168,213.11-252,095.49-79,490.16

Finding the Fourth Proportional to 168,213.11, 252,095.49 and 79,490.16

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Solution

The fourth proportional to 168,213.11, 252,095.49 and 79,490.16 is: 119,129.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,213.11 : 252,095.49 = 79,490.16 : x
  2. Step 2: Convert to fraction form
    168,213.11/252,095.49 = 79,490.16/x
  3. Step 3: Cross multiply
    168,213.11x = 252,095.49 × 79,490.16
  4. Step 4: Simplify right side
    168,213.11x = 20,039,110,835.38
  5. Step 5: Solve for x
    x = 20,039,110,835.38/168,213.11
  6. Step 6: Final answer
    x = 119,129.31

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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.