Home / 423,727.26-635,590.89-108,172.86

Finding the Fourth Proportional to 423,727.26, 635,590.89 and 108,172.86

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Solution

The fourth proportional to 423,727.26, 635,590.89 and 108,172.86 is: 162,259.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,727.26 : 635,590.89 = 108,172.86 : x
  2. Step 2: Convert to fraction form
    423,727.26/635,590.89 = 108,172.86/x
  3. Step 3: Cross multiply
    423,727.26x = 635,590.89 × 108,172.86
  4. Step 4: Simplify right side
    423,727.26x = 68,753,684,361.25
  5. Step 5: Solve for x
    x = 68,753,684,361.25/423,727.26
  6. Step 6: Final answer
    x = 162,259.29

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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.