Home / 170,884.40-256,353.24-82,121.36

Finding the Fourth Proportional to 170,884.40, 256,353.24 and 82,121.36

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Solution

The fourth proportional to 170,884.40, 256,353.24 and 82,121.36 is: 123,194.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,884.40 : 256,353.24 = 82,121.36 : x
  2. Step 2: Convert to fraction form
    170,884.40/256,353.24 = 82,121.36/x
  3. Step 3: Cross multiply
    170,884.40x = 256,353.24 × 82,121.36
  4. Step 4: Simplify right side
    170,884.40x = 21,052,076,709.21
  5. Step 5: Solve for x
    x = 21,052,076,709.21/170,884.40
  6. Step 6: Final answer
    x = 123,194.84

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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.