Home / 149,791.07-206,710.62-81,808.04

Finding the Fourth Proportional to 149,791.07, 206,710.62 and 81,808.04

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Solution

The fourth proportional to 149,791.07, 206,710.62 and 81,808.04 is: 112,894.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,791.07 : 206,710.62 = 81,808.04 : x
  2. Step 2: Convert to fraction form
    149,791.07/206,710.62 = 81,808.04/x
  3. Step 3: Cross multiply
    149,791.07x = 206,710.62 × 81,808.04
  4. Step 4: Simplify right side
    149,791.07x = 16,910,590,879.38
  5. Step 5: Solve for x
    x = 16,910,590,879.38/149,791.07
  6. Step 6: Final answer
    x = 112,894.52

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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.