Finding the Fourth Proportional to 68,186.76, 102,295.63 and 20,806.09
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Solution
The fourth proportional to 68,186.76, 102,295.63 and 20,806.09 is: 31,213.86
Step by Step Solution
- Step 1: Write the proportion equation
68,186.76 : 102,295.63 = 20,806.09 : x - Step 2: Convert to fraction form
68,186.76/102,295.63 = 20,806.09/x - Step 3: Cross multiply
68,186.76x = 102,295.63 × 20,806.09 - Step 4: Simplify right side
68,186.76x = 2,128,372,200.88 - Step 5: Solve for x
x = 2,128,372,200.88/68,186.76 - Step 6: Final answer
x = 31,213.86
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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.