Home / 126,584.26-174,603.94-81,190.31

Finding the Fourth Proportional to 126,584.26, 174,603.94 and 81,190.31

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Solution

The fourth proportional to 126,584.26, 174,603.94 and 81,190.31 is: 111,989.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,584.26 : 174,603.94 = 81,190.31 : x
  2. Step 2: Convert to fraction form
    126,584.26/174,603.94 = 81,190.31/x
  3. Step 3: Cross multiply
    126,584.26x = 174,603.94 × 81,190.31
  4. Step 4: Simplify right side
    126,584.26x = 14,176,146,939.83
  5. Step 5: Solve for x
    x = 14,176,146,939.83/126,584.26
  6. Step 6: Final answer
    x = 111,989.81

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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.