Home / 170,960.90-256,441.35-123,721.70

Finding the Fourth Proportional to 170,960.90, 256,441.35 and 123,721.70

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Solution

The fourth proportional to 170,960.90, 256,441.35 and 123,721.70 is: 185,582.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,960.90 : 256,441.35 = 123,721.70 : x
  2. Step 2: Convert to fraction form
    170,960.90/256,441.35 = 123,721.70/x
  3. Step 3: Cross multiply
    170,960.90x = 256,441.35 × 123,721.70
  4. Step 4: Simplify right side
    170,960.90x = 31,727,359,772.30
  5. Step 5: Solve for x
    x = 31,727,359,772.30/170,960.90
  6. Step 6: Final answer
    x = 185,582.55

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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.