Finding the Fourth Proportional to 167,990.82, 251,995.41 and 68,136.18
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Solution
The fourth proportional to 167,990.82, 251,995.41 and 68,136.18 is: 102,207.99
Step by Step Solution
- Step 1: Write the proportion equation
167,990.82 : 251,995.41 = 68,136.18 : x - Step 2: Convert to fraction form
167,990.82/251,995.41 = 68,136.18/x - Step 3: Cross multiply
167,990.82x = 251,995.41 × 68,136.18 - Step 4: Simplify right side
167,990.82x = 17,170,004,614.93 - Step 5: Solve for x
x = 17,170,004,614.93/167,990.82 - Step 6: Final answer
x = 102,207.99
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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.