Finding the Fourth Proportional to 146,010.09, 201,493.93 and 78,942.09
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Solution
The fourth proportional to 146,010.09, 201,493.93 and 78,942.09 is: 108,940.09
Step by Step Solution
- Step 1: Write the proportion equation
146,010.09 : 201,493.93 = 78,942.09 : x - Step 2: Convert to fraction form
146,010.09/201,493.93 = 78,942.09/x - Step 3: Cross multiply
146,010.09x = 201,493.93 × 78,942.09 - Step 4: Simplify right side
146,010.09x = 15,906,352,662.78 - Step 5: Solve for x
x = 15,906,352,662.78/146,010.09 - Step 6: Final answer
x = 108,940.09
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1.5x scale
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.