Home / 170,868.26-256,357.22-82,128.20

Finding the Fourth Proportional to 170,868.26, 256,357.22 and 82,128.20

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Solution

The fourth proportional to 170,868.26, 256,357.22 and 82,128.20 is: 123,218.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,868.26 : 256,357.22 = 82,128.20 : x
  2. Step 2: Convert to fraction form
    170,868.26/256,357.22 = 82,128.20/x
  3. Step 3: Cross multiply
    170,868.26x = 256,357.22 × 82,128.20
  4. Step 4: Simplify right side
    170,868.26x = 21,054,157,035.60
  5. Step 5: Solve for x
    x = 21,054,157,035.60/170,868.26
  6. Step 6: Final answer
    x = 123,218.65

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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.