Home / 167,970.24-231,781.62-103,429.20

Finding the Fourth Proportional to 167,970.24, 231,781.62 and 103,429.20

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Solution

The fourth proportional to 167,970.24, 231,781.62 and 103,429.20 is: 142,721.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,970.24 : 231,781.62 = 103,429.20 : x
  2. Step 2: Convert to fraction form
    167,970.24/231,781.62 = 103,429.20/x
  3. Step 3: Cross multiply
    167,970.24x = 231,781.62 × 103,429.20
  4. Step 4: Simplify right side
    167,970.24x = 23,972,987,531.30
  5. Step 5: Solve for x
    x = 23,972,987,531.30/167,970.24
  6. Step 6: Final answer
    x = 142,721.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.