Finding the Fourth Proportional to 143,046.09, 197,357.94 and 82,608.75
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Solution
The fourth proportional to 143,046.09, 197,357.94 and 82,608.75 is: 113,973.70
Step by Step Solution
- Step 1: Write the proportion equation
143,046.09 : 197,357.94 = 82,608.75 : x - Step 2: Convert to fraction form
143,046.09/197,357.94 = 82,608.75/x - Step 3: Cross multiply
143,046.09x = 197,357.94 × 82,608.75 - Step 4: Simplify right side
143,046.09x = 16,303,492,725.98 - Step 5: Solve for x
x = 16,303,492,725.98/143,046.09 - Step 6: Final answer
x = 113,973.70
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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.