Home / 138,218.12-190,799.84-92,922.37

Finding the Fourth Proportional to 138,218.12, 190,799.84 and 92,922.37

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Solution

The fourth proportional to 138,218.12, 190,799.84 and 92,922.37 is: 128,272.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,218.12 : 190,799.84 = 92,922.37 : x
  2. Step 2: Convert to fraction form
    138,218.12/190,799.84 = 92,922.37/x
  3. Step 3: Cross multiply
    138,218.12x = 190,799.84 × 92,922.37
  4. Step 4: Simplify right side
    138,218.12x = 17,729,573,083.73
  5. Step 5: Solve for x
    x = 17,729,573,083.73/138,218.12
  6. Step 6: Final answer
    x = 128,272.43

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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.