Finding the Fourth Proportional to 173,639.68, 260,620.80 and 68,531.20
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Solution
The fourth proportional to 173,639.68, 260,620.80 and 68,531.20 is: 102,860.45
Step by Step Solution
- Step 1: Write the proportion equation
173,639.68 : 260,620.80 = 68,531.20 : x - Step 2: Convert to fraction form
173,639.68/260,620.80 = 68,531.20/x - Step 3: Cross multiply
173,639.68x = 260,620.80 × 68,531.20 - Step 4: Simplify right side
173,639.68x = 17,860,656,168.96 - Step 5: Solve for x
x = 17,860,656,168.96/173,639.68 - Step 6: Final answer
x = 102,860.45
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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.