Home / 206,325.80-309,535.18-73,205.86

Finding the Fourth Proportional to 206,325.80, 309,535.18 and 73,205.86

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Solution

The fourth proportional to 206,325.80, 309,535.18 and 73,205.86 is: 109,825.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,325.80 : 309,535.18 = 73,205.86 : x
  2. Step 2: Convert to fraction form
    206,325.80/309,535.18 = 73,205.86/x
  3. Step 3: Cross multiply
    206,325.80x = 309,535.18 × 73,205.86
  4. Step 4: Simplify right side
    206,325.80x = 22,659,789,052.15
  5. Step 5: Solve for x
    x = 22,659,789,052.15/206,325.80
  6. Step 6: Final answer
    x = 109,825.28

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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.