Finding the Fourth Proportional to 151,115.68, 208,546.64 and 87,441.12
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Solution
The fourth proportional to 151,115.68, 208,546.64 and 87,441.12 is: 120,672.80
Step by Step Solution
- Step 1: Write the proportion equation
151,115.68 : 208,546.64 = 87,441.12 : x - Step 2: Convert to fraction form
151,115.68/208,546.64 = 87,441.12/x - Step 3: Cross multiply
151,115.68x = 208,546.64 × 87,441.12 - Step 4: Simplify right side
151,115.68x = 18,235,551,773.84 - Step 5: Solve for x
x = 18,235,551,773.84/151,115.68 - Step 6: Final answer
x = 120,672.80
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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.