Home / 104,155.97-143,695.60-76,997.26

Finding the Fourth Proportional to 104,155.97, 143,695.60 and 76,997.26

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Solution

The fourth proportional to 104,155.97, 143,695.60 and 76,997.26 is: 106,226.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,155.97 : 143,695.60 = 76,997.26 : x
  2. Step 2: Convert to fraction form
    104,155.97/143,695.60 = 76,997.26/x
  3. Step 3: Cross multiply
    104,155.97x = 143,695.60 × 76,997.26
  4. Step 4: Simplify right side
    104,155.97x = 11,064,166,755.58
  5. Step 5: Solve for x
    x = 11,064,166,755.58/104,155.97
  6. Step 6: Final answer
    x = 106,226.91

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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.