Home / 149,845.98-206,791.48-81,865.82

Finding the Fourth Proportional to 149,845.98, 206,791.48 and 81,865.82

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Solution

The fourth proportional to 149,845.98, 206,791.48 and 81,865.82 is: 112,977.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,845.98 : 206,791.48 = 81,865.82 : x
  2. Step 2: Convert to fraction form
    149,845.98/206,791.48 = 81,865.82/x
  3. Step 3: Cross multiply
    149,845.98x = 206,791.48 × 81,865.82
  4. Step 4: Simplify right side
    149,845.98x = 16,929,154,079.21
  5. Step 5: Solve for x
    x = 16,929,154,079.21/149,845.98
  6. Step 6: Final answer
    x = 112,977.03

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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.