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Finding the Fourth Proportional to 147,675, 203,795.82 and 80,611.32

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Solution

The fourth proportional to 147,675, 203,795.82 and 80,611.32 is: 111,245.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,675 : 203,795.82 = 80,611.32 : x
  2. Step 2: Convert to fraction form
    147,675/203,795.82 = 80,611.32/x
  3. Step 3: Cross multiply
    147,675x = 203,795.82 × 80,611.32
  4. Step 4: Simplify right side
    147,675x = 16,428,250,060.68
  5. Step 5: Solve for x
    x = 16,428,250,060.68/147,675
  6. Step 6: Final answer
    x = 111,245.98

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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.