Home / 170,728.10-256,092.15-82,154.60

Finding the Fourth Proportional to 170,728.10, 256,092.15 and 82,154.60

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Solution

The fourth proportional to 170,728.10, 256,092.15 and 82,154.60 is: 123,231.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,728.10 : 256,092.15 = 82,154.60 : x
  2. Step 2: Convert to fraction form
    170,728.10/256,092.15 = 82,154.60/x
  3. Step 3: Cross multiply
    170,728.10x = 256,092.15 × 82,154.60
  4. Step 4: Simplify right side
    170,728.10x = 21,039,148,146.39
  5. Step 5: Solve for x
    x = 21,039,148,146.39/170,728.10
  6. Step 6: Final answer
    x = 123,231.90

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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.