Finding the Fourth Proportional to 107,436.93, 161,155.44 and 40,861.68
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Solution
The fourth proportional to 107,436.93, 161,155.44 and 40,861.68 is: 61,292.54
Step by Step Solution
- Step 1: Write the proportion equation
107,436.93 : 161,155.44 = 40,861.68 : x - Step 2: Convert to fraction form
107,436.93/161,155.44 = 40,861.68/x - Step 3: Cross multiply
107,436.93x = 161,155.44 × 40,861.68 - Step 4: Simplify right side
107,436.93x = 6,585,082,019.54 - Step 5: Solve for x
x = 6,585,082,019.54/107,436.93 - Step 6: Final answer
x = 61,292.54
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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.