Finding the Fourth Proportional to 121,596.44, 182,458.88 and 86,285.94
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Solution
The fourth proportional to 121,596.44, 182,458.88 and 86,285.94 is: 129,474.48
Step by Step Solution
- Step 1: Write the proportion equation
121,596.44 : 182,458.88 = 86,285.94 : x - Step 2: Convert to fraction form
121,596.44/182,458.88 = 86,285.94/x - Step 3: Cross multiply
121,596.44x = 182,458.88 × 86,285.94 - Step 4: Simplify right side
121,596.44x = 15,743,635,972.15 - Step 5: Solve for x
x = 15,743,635,972.15/121,596.44 - Step 6: Final answer
x = 129,474.48
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.