Home / 168,863.25-253,382.18-74,160

Finding the Fourth Proportional to 168,863.25, 253,382.18 and 74,160

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Solution

The fourth proportional to 168,863.25, 253,382.18 and 74,160 is: 111,278.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,863.25 : 253,382.18 = 74,160 : x
  2. Step 2: Convert to fraction form
    168,863.25/253,382.18 = 74,160/x
  3. Step 3: Cross multiply
    168,863.25x = 253,382.18 × 74,160
  4. Step 4: Simplify right side
    168,863.25x = 18,790,822,468.80
  5. Step 5: Solve for x
    x = 18,790,822,468.80/168,863.25
  6. Step 6: Final answer
    x = 111,278.34

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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.