Home / 141,611.76-195,401.36-81,171.28

Finding the Fourth Proportional to 141,611.76, 195,401.36 and 81,171.28

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Solution

The fourth proportional to 141,611.76, 195,401.36 and 81,171.28 is: 112,003.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,611.76 : 195,401.36 = 81,171.28 : x
  2. Step 2: Convert to fraction form
    141,611.76/195,401.36 = 81,171.28/x
  3. Step 3: Cross multiply
    141,611.76x = 195,401.36 × 81,171.28
  4. Step 4: Simplify right side
    141,611.76x = 15,860,978,952.12
  5. Step 5: Solve for x
    x = 15,860,978,952.12/141,611.76
  6. Step 6: Final answer
    x = 112,003.26

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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.