Home / 126,679.24-190,084.47-91,905.94

Finding the Fourth Proportional to 126,679.24, 190,084.47 and 91,905.94

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Solution

The fourth proportional to 126,679.24, 190,084.47 and 91,905.94 is: 137,906.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,679.24 : 190,084.47 = 91,905.94 : x
  2. Step 2: Convert to fraction form
    126,679.24/190,084.47 = 91,905.94/x
  3. Step 3: Cross multiply
    126,679.24x = 190,084.47 × 91,905.94
  4. Step 4: Simplify right side
    126,679.24x = 17,469,891,894.75
  5. Step 5: Solve for x
    x = 17,469,891,894.75/126,679.24
  6. Step 6: Final answer
    x = 137,906.51

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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.