Finding the Fourth Proportional to 149,419.68, 206,198.56 and 82,351.68
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Solution
The fourth proportional to 149,419.68, 206,198.56 and 82,351.68 is: 113,644.99
Step by Step Solution
- Step 1: Write the proportion equation
149,419.68 : 206,198.56 = 82,351.68 : x - Step 2: Convert to fraction form
149,419.68/206,198.56 = 82,351.68/x - Step 3: Cross multiply
149,419.68x = 206,198.56 × 82,351.68 - Step 4: Simplify right side
149,419.68x = 16,980,797,829.58 - Step 5: Solve for x
x = 16,980,797,829.58/149,419.68 - Step 6: Final answer
x = 113,644.99
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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.