Home / 104,142.89-143,716.07-58,820.96

Finding the Fourth Proportional to 104,142.89, 143,716.07 and 58,820.96

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Solution

The fourth proportional to 104,142.89, 143,716.07 and 58,820.96 is: 81,172.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,142.89 : 143,716.07 = 58,820.96 : x
  2. Step 2: Convert to fraction form
    104,142.89/143,716.07 = 58,820.96/x
  3. Step 3: Cross multiply
    104,142.89x = 143,716.07 × 58,820.96
  4. Step 4: Simplify right side
    104,142.89x = 8,453,516,910.72
  5. Step 5: Solve for x
    x = 8,453,516,910.72/104,142.89
  6. Step 6: Final answer
    x = 81,172.29

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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.