Home / 154,940.82-213,825.33-121,348.50

Finding the Fourth Proportional to 154,940.82, 213,825.33 and 121,348.50

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Solution

The fourth proportional to 154,940.82, 213,825.33 and 121,348.50 is: 167,466.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,940.82 : 213,825.33 = 121,348.50 : x
  2. Step 2: Convert to fraction form
    154,940.82/213,825.33 = 121,348.50/x
  3. Step 3: Cross multiply
    154,940.82x = 213,825.33 × 121,348.50
  4. Step 4: Simplify right side
    154,940.82x = 25,947,383,057.51
  5. Step 5: Solve for x
    x = 25,947,383,057.51/154,940.82
  6. Step 6: Final answer
    x = 167,466.41

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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.