Finding the Fourth Proportional to 161,278.97, 222,572.57 and 89,660.19
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Solution
The fourth proportional to 161,278.97, 222,572.57 and 89,660.19 is: 123,735.28
Step by Step Solution
- Step 1: Write the proportion equation
161,278.97 : 222,572.57 = 89,660.19 : x - Step 2: Convert to fraction form
161,278.97/222,572.57 = 89,660.19/x - Step 3: Cross multiply
161,278.97x = 222,572.57 × 89,660.19 - Step 4: Simplify right side
161,278.97x = 19,955,898,914.99 - Step 5: Solve for x
x = 19,955,898,914.99/161,278.97 - Step 6: Final answer
x = 123,735.28
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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.