Home / 170,743.70-256,115.55-108,689.30

Finding the Fourth Proportional to 170,743.70, 256,115.55 and 108,689.30

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Solution

The fourth proportional to 170,743.70, 256,115.55 and 108,689.30 is: 163,033.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,743.70 : 256,115.55 = 108,689.30 : x
  2. Step 2: Convert to fraction form
    170,743.70/256,115.55 = 108,689.30/x
  3. Step 3: Cross multiply
    170,743.70x = 256,115.55 × 108,689.30
  4. Step 4: Simplify right side
    170,743.70x = 27,837,019,848.62
  5. Step 5: Solve for x
    x = 27,837,019,848.62/170,743.70
  6. Step 6: Final answer
    x = 163,033.95

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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.