Finding the Fourth Proportional to 68,198.66, 102,297.99 and 20,813.99
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Solution
The fourth proportional to 68,198.66, 102,297.99 and 20,813.99 is: 31,220.99
Step by Step Solution
- Step 1: Write the proportion equation
68,198.66 : 102,297.99 = 20,813.99 : x - Step 2: Convert to fraction form
68,198.66/102,297.99 = 20,813.99/x - Step 3: Cross multiply
68,198.66x = 102,297.99 × 20,813.99 - Step 4: Simplify right side
68,198.66x = 2,129,229,340.88 - Step 5: Solve for x
x = 2,129,229,340.88/68,198.66 - Step 6: Final answer
x = 31,220.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.