Home / 149,832.58-206,759.82-81,835.78

Finding the Fourth Proportional to 149,832.58, 206,759.82 and 81,835.78

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Solution

The fourth proportional to 149,832.58, 206,759.82 and 81,835.78 is: 112,928.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,832.58 : 206,759.82 = 81,835.78 : x
  2. Step 2: Convert to fraction form
    149,832.58/206,759.82 = 81,835.78/x
  3. Step 3: Cross multiply
    149,832.58x = 206,759.82 × 81,835.78
  4. Step 4: Simplify right side
    149,832.58x = 16,920,351,142.36
  5. Step 5: Solve for x
    x = 16,920,351,142.36/149,832.58
  6. Step 6: Final answer
    x = 112,928.38

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1.5x scale

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.