Finding the Fourth Proportional to 161,069.97, 222,279.57 and 89,456.70
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Solution
The fourth proportional to 161,069.97, 222,279.57 and 89,456.70 is: 123,451.92
Step by Step Solution
- Step 1: Write the proportion equation
161,069.97 : 222,279.57 = 89,456.70 : x - Step 2: Convert to fraction form
161,069.97/222,279.57 = 89,456.70/x - Step 3: Cross multiply
161,069.97x = 222,279.57 × 89,456.70 - Step 4: Simplify right side
161,069.97x = 19,884,396,809.62 - Step 5: Solve for x
x = 19,884,396,809.62/161,069.97 - Step 6: Final answer
x = 123,451.92
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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.