Finding the Fourth Proportional to 119,153.19, 164,321.67 and 80,969.97
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Solution
The fourth proportional to 119,153.19, 164,321.67 and 80,969.97 is: 111,663.99
Step by Step Solution
- Step 1: Write the proportion equation
119,153.19 : 164,321.67 = 80,969.97 : x - Step 2: Convert to fraction form
119,153.19/164,321.67 = 80,969.97/x - Step 3: Cross multiply
119,153.19x = 164,321.67 × 80,969.97 - Step 4: Simplify right side
119,153.19x = 13,305,120,690.25 - Step 5: Solve for x
x = 13,305,120,690.25/119,153.19 - Step 6: Final answer
x = 111,663.99
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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.