Finding the Fourth Proportional to 151,911.23, 209,637.49 and 84,843.23
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Solution
The fourth proportional to 151,911.23, 209,637.49 and 84,843.23 is: 117,083.65
Step by Step Solution
- Step 1: Write the proportion equation
151,911.23 : 209,637.49 = 84,843.23 : x - Step 2: Convert to fraction form
151,911.23/209,637.49 = 84,843.23/x - Step 3: Cross multiply
151,911.23x = 209,637.49 × 84,843.23 - Step 4: Simplify right side
151,911.23x = 17,786,321,780.69 - Step 5: Solve for x
x = 17,786,321,780.69/151,911.23 - Step 6: Final answer
x = 117,083.65
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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.