Home / 149,887.06-206,844.68-81,904.04

Finding the Fourth Proportional to 149,887.06, 206,844.68 and 81,904.04

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Solution

The fourth proportional to 149,887.06, 206,844.68 and 81,904.04 is: 113,027.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,887.06 : 206,844.68 = 81,904.04 : x
  2. Step 2: Convert to fraction form
    149,887.06/206,844.68 = 81,904.04/x
  3. Step 3: Cross multiply
    149,887.06x = 206,844.68 × 81,904.04
  4. Step 4: Simplify right side
    149,887.06x = 16,941,414,115.04
  5. Step 5: Solve for x
    x = 16,941,414,115.04/149,887.06
  6. Step 6: Final answer
    x = 113,027.87

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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.