Home / 137,921.44-190,266.48-117,992.40

Finding the Fourth Proportional to 137,921.44, 190,266.48 and 117,992.40

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Solution

The fourth proportional to 137,921.44, 190,266.48 and 117,992.40 is: 162,773.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,921.44 : 190,266.48 = 117,992.40 : x
  2. Step 2: Convert to fraction form
    137,921.44/190,266.48 = 117,992.40/x
  3. Step 3: Cross multiply
    137,921.44x = 190,266.48 × 117,992.40
  4. Step 4: Simplify right side
    137,921.44x = 22,449,998,614.75
  5. Step 5: Solve for x
    x = 22,449,998,614.75/137,921.44
  6. Step 6: Final answer
    x = 162,773.81

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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.