Home / 170,022.32-255,033.96-81,255.68

Finding the Fourth Proportional to 170,022.32, 255,033.96 and 81,255.68

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Solution

The fourth proportional to 170,022.32, 255,033.96 and 81,255.68 is: 121,883.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,022.32 : 255,033.96 = 81,255.68 : x
  2. Step 2: Convert to fraction form
    170,022.32/255,033.96 = 81,255.68/x
  3. Step 3: Cross multiply
    170,022.32x = 255,033.96 × 81,255.68
  4. Step 4: Simplify right side
    170,022.32x = 20,722,957,842.89
  5. Step 5: Solve for x
    x = 20,722,957,842.89/170,022.32
  6. Step 6: Final answer
    x = 121,883.75

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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.