Home / 137,949.94-190,203.92-107,331.94

Finding the Fourth Proportional to 137,949.94, 190,203.92 and 107,331.94

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Solution

The fourth proportional to 137,949.94, 190,203.92 and 107,331.94 is: 147,988.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,949.94 : 190,203.92 = 107,331.94 : x
  2. Step 2: Convert to fraction form
    137,949.94/190,203.92 = 107,331.94/x
  3. Step 3: Cross multiply
    137,949.94x = 190,203.92 × 107,331.94
  4. Step 4: Simplify right side
    137,949.94x = 20,414,955,729.20
  5. Step 5: Solve for x
    x = 20,414,955,729.20/137,949.94
  6. Step 6: Final answer
    x = 147,988.15

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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.