Finding the Fourth Proportional to 166,891.86, 230,188.77 and 121,583.70
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Solution
The fourth proportional to 166,891.86, 230,188.77 and 121,583.70 is: 167,696.63
Step by Step Solution
- Step 1: Write the proportion equation
166,891.86 : 230,188.77 = 121,583.70 : x - Step 2: Convert to fraction form
166,891.86/230,188.77 = 121,583.70/x - Step 3: Cross multiply
166,891.86x = 230,188.77 × 121,583.70 - Step 4: Simplify right side
166,891.86x = 27,987,202,355.05 - Step 5: Solve for x
x = 27,987,202,355.05/166,891.86 - Step 6: Final answer
x = 167,696.63
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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.