Finding the Fourth Proportional to 107,896.36, 161,891.18 and 57,918.09
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Solution
The fourth proportional to 107,896.36, 161,891.18 and 57,918.09 is: 86,902.17
Step by Step Solution
- Step 1: Write the proportion equation
107,896.36 : 161,891.18 = 57,918.09 : x - Step 2: Convert to fraction form
107,896.36/161,891.18 = 57,918.09/x - Step 3: Cross multiply
107,896.36x = 161,891.18 × 57,918.09 - Step 4: Simplify right side
107,896.36x = 9,376,427,933.45 - Step 5: Solve for x
x = 9,376,427,933.45/107,896.36 - Step 6: Final answer
x = 86,902.17
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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.