Finding the Fourth Proportional to 103,716.10, 155,464.80 and 40,511.80
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Solution
The fourth proportional to 103,716.10, 155,464.80 and 40,511.80 is: 60,724.99
Step by Step Solution
- Step 1: Write the proportion equation
103,716.10 : 155,464.80 = 40,511.80 : x - Step 2: Convert to fraction form
103,716.10/155,464.80 = 40,511.80/x - Step 3: Cross multiply
103,716.10x = 155,464.80 × 40,511.80 - Step 4: Simplify right side
103,716.10x = 6,298,158,884.64 - Step 5: Solve for x
x = 6,298,158,884.64/103,716.10 - Step 6: Final answer
x = 60,724.99
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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.