Finding the Fourth Proportional to 144,621.40, 199,571.70 and 84,193.78
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Solution
The fourth proportional to 144,621.40, 199,571.70 and 84,193.78 is: 116,184.02
Step by Step Solution
- Step 1: Write the proportion equation
144,621.40 : 199,571.70 = 84,193.78 : x - Step 2: Convert to fraction form
144,621.40/199,571.70 = 84,193.78/x - Step 3: Cross multiply
144,621.40x = 199,571.70 × 84,193.78 - Step 4: Simplify right side
144,621.40x = 16,802,695,804.03 - Step 5: Solve for x
x = 16,802,695,804.03/144,621.40 - Step 6: Final answer
x = 116,184.02
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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.