Finding the Fourth Proportional to 103,180.64, 154,770.95 and 68,112.09
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Solution
The fourth proportional to 103,180.64, 154,770.95 and 68,112.09 is: 102,168.14
Step by Step Solution
- Step 1: Write the proportion equation
103,180.64 : 154,770.95 = 68,112.09 : x - Step 2: Convert to fraction form
103,180.64/154,770.95 = 68,112.09/x - Step 3: Cross multiply
103,180.64x = 154,770.95 × 68,112.09 - Step 4: Simplify right side
103,180.64x = 10,541,773,046.07 - Step 5: Solve for x
x = 10,541,773,046.07/103,180.64 - Step 6: Final answer
x = 102,168.14
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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.