Finding the Fourth Proportional to 124,753.26, 172,157.49 and 68,163.42
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Solution
The fourth proportional to 124,753.26, 172,157.49 and 68,163.42 is: 94,064.42
Step by Step Solution
- Step 1: Write the proportion equation
124,753.26 : 172,157.49 = 68,163.42 : x - Step 2: Convert to fraction form
124,753.26/172,157.49 = 68,163.42/x - Step 3: Cross multiply
124,753.26x = 172,157.49 × 68,163.42 - Step 4: Simplify right side
124,753.26x = 11,734,843,297.02 - Step 5: Solve for x
x = 11,734,843,297.02/124,753.26 - Step 6: Final answer
x = 94,064.42
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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.