Finding the Fourth Proportional to 135,354.49, 202,917.56 and 85,324.32
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Solution
The fourth proportional to 135,354.49, 202,917.56 and 85,324.32 is: 127,914.51
Step by Step Solution
- Step 1: Write the proportion equation
135,354.49 : 202,917.56 = 85,324.32 : x - Step 2: Convert to fraction form
135,354.49/202,917.56 = 85,324.32/x - Step 3: Cross multiply
135,354.49x = 202,917.56 × 85,324.32 - Step 4: Simplify right side
135,354.49x = 17,313,802,396.44 - Step 5: Solve for x
x = 17,313,802,396.44/135,354.49 - Step 6: Final answer
x = 127,914.51
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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.