Home / 168,022.64-251,940.80-66,717.96

Finding the Fourth Proportional to 168,022.64, 251,940.80 and 66,717.96

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Solution

The fourth proportional to 168,022.64, 251,940.80 and 66,717.96 is: 100,039.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,022.64 : 251,940.80 = 66,717.96 : x
  2. Step 2: Convert to fraction form
    168,022.64/251,940.80 = 66,717.96/x
  3. Step 3: Cross multiply
    168,022.64x = 251,940.80 × 66,717.96
  4. Step 4: Simplify right side
    168,022.64x = 16,808,976,216.77
  5. Step 5: Solve for x
    x = 16,808,976,216.77/168,022.64
  6. Step 6: Final answer
    x = 100,039.95

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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.