Finding the Fourth Proportional to 116,754.36, 161,091.36 and 71,415.84
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Solution
The fourth proportional to 116,754.36, 161,091.36 and 71,415.84 is: 98,535.72
Step by Step Solution
- Step 1: Write the proportion equation
116,754.36 : 161,091.36 = 71,415.84 : x - Step 2: Convert to fraction form
116,754.36/161,091.36 = 71,415.84/x - Step 3: Cross multiply
116,754.36x = 161,091.36 × 71,415.84 - Step 4: Simplify right side
116,754.36x = 11,504,474,791.14 - Step 5: Solve for x
x = 11,504,474,791.14/116,754.36 - Step 6: Final answer
x = 98,535.72
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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.