Home / 112,786.44-169,261.61-90,864.60

Finding the Fourth Proportional to 112,786.44, 169,261.61 and 90,864.60

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Solution

The fourth proportional to 112,786.44, 169,261.61 and 90,864.60 is: 136,362.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,786.44 : 169,261.61 = 90,864.60 : x
  2. Step 2: Convert to fraction form
    112,786.44/169,261.61 = 90,864.60/x
  3. Step 3: Cross multiply
    112,786.44x = 169,261.61 × 90,864.60
  4. Step 4: Simplify right side
    112,786.44x = 15,379,888,033.68
  5. Step 5: Solve for x
    x = 15,379,888,033.68/112,786.44
  6. Step 6: Final answer
    x = 136,362.92

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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.