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Finding the Fourth Proportional to 168,175.80, 251,826.30 and 108,689.40

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Solution

The fourth proportional to 168,175.80, 251,826.30 and 108,689.40 is: 162,751.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,175.80 : 251,826.30 = 108,689.40 : x
  2. Step 2: Convert to fraction form
    168,175.80/251,826.30 = 108,689.40/x
  3. Step 3: Cross multiply
    168,175.80x = 251,826.30 × 108,689.40
  4. Step 4: Simplify right side
    168,175.80x = 27,370,849,451.22
  5. Step 5: Solve for x
    x = 27,370,849,451.22/168,175.80
  6. Step 6: Final answer
    x = 162,751.42

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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.