Home / 262,604.10-394,003.35-85,116.90

Finding the Fourth Proportional to 262,604.10, 394,003.35 and 85,116.90

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Solution

The fourth proportional to 262,604.10, 394,003.35 and 85,116.90 is: 127,706.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,604.10 : 394,003.35 = 85,116.90 : x
  2. Step 2: Convert to fraction form
    262,604.10/394,003.35 = 85,116.90/x
  3. Step 3: Cross multiply
    262,604.10x = 394,003.35 × 85,116.90
  4. Step 4: Simplify right side
    262,604.10x = 33,536,343,741.62
  5. Step 5: Solve for x
    x = 33,536,343,741.62/262,604.10
  6. Step 6: Final answer
    x = 127,706.86

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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.