Home / 160,786.26-221,892.21-89,161.47

Finding the Fourth Proportional to 160,786.26, 221,892.21 and 89,161.47

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Solution

The fourth proportional to 160,786.26, 221,892.21 and 89,161.47 is: 123,046.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,786.26 : 221,892.21 = 89,161.47 : x
  2. Step 2: Convert to fraction form
    160,786.26/221,892.21 = 89,161.47/x
  3. Step 3: Cross multiply
    160,786.26x = 221,892.21 × 89,161.47
  4. Step 4: Simplify right side
    160,786.26x = 19,784,235,625.15
  5. Step 5: Solve for x
    x = 19,784,235,625.15/160,786.26
  6. Step 6: Final answer
    x = 123,046.81

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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.