Finding the Fourth Proportional to 71,146.94, 106,735.66 and 21,230.96
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Solution
The fourth proportional to 71,146.94, 106,735.66 and 21,230.96 is: 31,850.99
Step by Step Solution
- Step 1: Write the proportion equation
71,146.94 : 106,735.66 = 21,230.96 : x - Step 2: Convert to fraction form
71,146.94/106,735.66 = 21,230.96/x - Step 3: Cross multiply
71,146.94x = 106,735.66 × 21,230.96 - Step 4: Simplify right side
71,146.94x = 2,266,100,528.03 - Step 5: Solve for x
x = 2,266,100,528.03/71,146.94 - Step 6: Final answer
x = 31,850.99
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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.