Home / 170,766.90-256,180.05-70,872.30

Finding the Fourth Proportional to 170,766.90, 256,180.05 and 70,872.30

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Solution

The fourth proportional to 170,766.90, 256,180.05 and 70,872.30 is: 106,320.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,766.90 : 256,180.05 = 70,872.30 : x
  2. Step 2: Convert to fraction form
    170,766.90/256,180.05 = 70,872.30/x
  3. Step 3: Cross multiply
    170,766.90x = 256,180.05 × 70,872.30
  4. Step 4: Simplify right side
    170,766.90x = 18,156,069,357.62
  5. Step 5: Solve for x
    x = 18,156,069,357.62/170,766.90
  6. Step 6: Final answer
    x = 106,320.78

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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.