Finding the Fourth Proportional to 68,137.64, 102,211.56 and 18,216.62
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Solution
The fourth proportional to 68,137.64, 102,211.56 and 18,216.62 is: 27,326.29
Step by Step Solution
- Step 1: Write the proportion equation
68,137.64 : 102,211.56 = 18,216.62 : x - Step 2: Convert to fraction form
68,137.64/102,211.56 = 18,216.62/x - Step 3: Cross multiply
68,137.64x = 102,211.56 × 18,216.62 - Step 4: Simplify right side
68,137.64x = 1,861,949,148.13 - Step 5: Solve for x
x = 1,861,949,148.13/68,137.64 - Step 6: Final answer
x = 27,326.29
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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.