Finding the Fourth Proportional to 161,211.63, 222,402.97 and 100,677.18
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Solution
The fourth proportional to 161,211.63, 222,402.97 and 100,677.18 is: 138,891.37
Step by Step Solution
- Step 1: Write the proportion equation
161,211.63 : 222,402.97 = 100,677.18 : x - Step 2: Convert to fraction form
161,211.63/222,402.97 = 100,677.18/x - Step 3: Cross multiply
161,211.63x = 222,402.97 × 100,677.18 - Step 4: Simplify right side
161,211.63x = 22,390,903,843.22 - Step 5: Solve for x
x = 22,390,903,843.22/161,211.63 - Step 6: Final answer
x = 138,891.37
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.