Home / 149,922.53-206,892.60-81,939.50

Finding the Fourth Proportional to 149,922.53, 206,892.60 and 81,939.50

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Solution

The fourth proportional to 149,922.53, 206,892.60 and 81,939.50 is: 113,076.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,922.53 : 206,892.60 = 81,939.50 : x
  2. Step 2: Convert to fraction form
    149,922.53/206,892.60 = 81,939.50/x
  3. Step 3: Cross multiply
    149,922.53x = 206,892.60 × 81,939.50
  4. Step 4: Simplify right side
    149,922.53x = 16,952,676,197.70
  5. Step 5: Solve for x
    x = 16,952,676,197.70/149,922.53
  6. Step 6: Final answer
    x = 113,076.24

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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.