Home / 170,860.70-256,291.05-82,092.80

Finding the Fourth Proportional to 170,860.70, 256,291.05 and 82,092.80

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Solution

The fourth proportional to 170,860.70, 256,291.05 and 82,092.80 is: 123,139.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,860.70 : 256,291.05 = 82,092.80 : x
  2. Step 2: Convert to fraction form
    170,860.70/256,291.05 = 82,092.80/x
  3. Step 3: Cross multiply
    170,860.70x = 256,291.05 × 82,092.80
  4. Step 4: Simplify right side
    170,860.70x = 21,039,649,909.44
  5. Step 5: Solve for x
    x = 21,039,649,909.44/170,860.70
  6. Step 6: Final answer
    x = 123,139.20

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1.5x scale

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.