Home / 138,054.11-190,436.83-82,849.31

Finding the Fourth Proportional to 138,054.11, 190,436.83 and 82,849.31

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Solution

The fourth proportional to 138,054.11, 190,436.83 and 82,849.31 is: 114,285.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,054.11 : 190,436.83 = 82,849.31 : x
  2. Step 2: Convert to fraction form
    138,054.11/190,436.83 = 82,849.31/x
  3. Step 3: Cross multiply
    138,054.11x = 190,436.83 × 82,849.31
  4. Step 4: Simplify right side
    138,054.11x = 15,777,560,233.06
  5. Step 5: Solve for x
    x = 15,777,560,233.06/138,054.11
  6. Step 6: Final answer
    x = 114,285.34

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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.