Home / 206,380.22-284,683.74-129,777.81

Finding the Fourth Proportional to 206,380.22, 284,683.74 and 129,777.81

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Solution

The fourth proportional to 206,380.22, 284,683.74 and 129,777.81 is: 179,017.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,380.22 : 284,683.74 = 129,777.81 : x
  2. Step 2: Convert to fraction form
    206,380.22/284,683.74 = 129,777.81/x
  3. Step 3: Cross multiply
    206,380.22x = 284,683.74 × 129,777.81
  4. Step 4: Simplify right side
    206,380.22x = 36,945,632,319.81
  5. Step 5: Solve for x
    x = 36,945,632,319.81/206,380.22
  6. Step 6: Final answer
    x = 179,017.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.