Home / 165,825.44-228,839.28-90,374

Finding the Fourth Proportional to 165,825.44, 228,839.28 and 90,374

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Solution

The fourth proportional to 165,825.44, 228,839.28 and 90,374 is: 124,716.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,825.44 : 228,839.28 = 90,374 : x
  2. Step 2: Convert to fraction form
    165,825.44/228,839.28 = 90,374/x
  3. Step 3: Cross multiply
    165,825.44x = 228,839.28 × 90,374
  4. Step 4: Simplify right side
    165,825.44x = 20,681,121,090.72
  5. Step 5: Solve for x
    x = 20,681,121,090.72/165,825.44
  6. Step 6: Final answer
    x = 124,716.21

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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.