Finding the Fourth Proportional to 144,859.44, 199,902.24 and 81,201.36
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Solution
The fourth proportional to 144,859.44, 199,902.24 and 81,201.36 is: 112,055.75
Step by Step Solution
- Step 1: Write the proportion equation
144,859.44 : 199,902.24 = 81,201.36 : x - Step 2: Convert to fraction form
144,859.44/199,902.24 = 81,201.36/x - Step 3: Cross multiply
144,859.44x = 199,902.24 × 81,201.36 - Step 4: Simplify right side
144,859.44x = 16,232,333,755.05 - Step 5: Solve for x
x = 16,232,333,755.05/144,859.44 - Step 6: Final answer
x = 112,055.75
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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.