Home / 208,781.21-313,169.09-51,011.03

Finding the Fourth Proportional to 208,781.21, 313,169.09 and 51,011.03

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Solution

The fourth proportional to 208,781.21, 313,169.09 and 51,011.03 is: 76,515.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,781.21 : 313,169.09 = 51,011.03 : x
  2. Step 2: Convert to fraction form
    208,781.21/313,169.09 = 51,011.03/x
  3. Step 3: Cross multiply
    208,781.21x = 313,169.09 × 51,011.03
  4. Step 4: Simplify right side
    208,781.21x = 15,975,076,024.16
  5. Step 5: Solve for x
    x = 15,975,076,024.16/208,781.21
  6. Step 6: Final answer
    x = 76,515.87

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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.