Finding the Fourth Proportional to 107,431.04, 161,122.26 and 40,847.42
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Solution
The fourth proportional to 107,431.04, 161,122.26 and 40,847.42 is: 61,261.89
Step by Step Solution
- Step 1: Write the proportion equation
107,431.04 : 161,122.26 = 40,847.42 : x - Step 2: Convert to fraction form
107,431.04/161,122.26 = 40,847.42/x - Step 3: Cross multiply
107,431.04x = 161,122.26 × 40,847.42 - Step 4: Simplify right side
107,431.04x = 6,581,428,625.57 - Step 5: Solve for x
x = 6,581,428,625.57/107,431.04 - Step 6: Final answer
x = 61,261.89
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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.