Home / 170,728.04-255,965.20-81,896.96

Finding the Fourth Proportional to 170,728.04, 255,965.20 and 81,896.96

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Solution

The fourth proportional to 170,728.04, 255,965.20 and 81,896.96 is: 122,784.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,728.04 : 255,965.20 = 81,896.96 : x
  2. Step 2: Convert to fraction form
    170,728.04/255,965.20 = 81,896.96/x
  3. Step 3: Cross multiply
    170,728.04x = 255,965.20 × 81,896.96
  4. Step 4: Simplify right side
    170,728.04x = 20,962,771,745.79
  5. Step 5: Solve for x
    x = 20,962,771,745.79/170,728.04
  6. Step 6: Final answer
    x = 122,784.59

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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.