Home / 170,887.70-256,331.55-82,314.20

Finding the Fourth Proportional to 170,887.70, 256,331.55 and 82,314.20

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Solution

The fourth proportional to 170,887.70, 256,331.55 and 82,314.20 is: 123,471.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,887.70 : 256,331.55 = 82,314.20 : x
  2. Step 2: Convert to fraction form
    170,887.70/256,331.55 = 82,314.20/x
  3. Step 3: Cross multiply
    170,887.70x = 256,331.55 × 82,314.20
  4. Step 4: Simplify right side
    170,887.70x = 21,099,726,473.01
  5. Step 5: Solve for x
    x = 21,099,726,473.01/170,887.70
  6. Step 6: Final answer
    x = 123,471.30

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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.