Home / 208,781.09-313,168.90-51,010.91

Finding the Fourth Proportional to 208,781.09, 313,168.90 and 51,010.91

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Solution

The fourth proportional to 208,781.09, 313,168.90 and 51,010.91 is: 76,515.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,781.09 : 313,168.90 = 51,010.91 : x
  2. Step 2: Convert to fraction form
    208,781.09/313,168.90 = 51,010.91/x
  3. Step 3: Cross multiply
    208,781.09x = 313,168.90 × 51,010.91
  4. Step 4: Simplify right side
    208,781.09x = 15,975,029,662.25
  5. Step 5: Solve for x
    x = 15,975,029,662.25/208,781.09
  6. Step 6: Final answer
    x = 76,515.69

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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.