Home / 115,336.43-159,180-67,608.80

Finding the Fourth Proportional to 115,336.43, 159,180 and 67,608.80

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Solution

The fourth proportional to 115,336.43, 159,180 and 67,608.80 is: 93,309.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,336.43 : 159,180 = 67,608.80 : x
  2. Step 2: Convert to fraction form
    115,336.43/159,180 = 67,608.80/x
  3. Step 3: Cross multiply
    115,336.43x = 159,180 × 67,608.80
  4. Step 4: Simplify right side
    115,336.43x = 10,761,968,784
  5. Step 5: Solve for x
    x = 10,761,968,784/115,336.43
  6. Step 6: Final answer
    x = 93,309.36

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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.