Finding the Fourth Proportional to 128,425.44, 192,608.93 and 48,471.88
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Solution
The fourth proportional to 128,425.44, 192,608.93 and 48,471.88 is: 72,696.79
Step by Step Solution
- Step 1: Write the proportion equation
128,425.44 : 192,608.93 = 48,471.88 : x - Step 2: Convert to fraction form
128,425.44/192,608.93 = 48,471.88/x - Step 3: Cross multiply
128,425.44x = 192,608.93 × 48,471.88 - Step 4: Simplify right side
128,425.44x = 9,336,116,941.89 - Step 5: Solve for x
x = 9,336,116,941.89/128,425.44 - Step 6: Final answer
x = 72,696.79
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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.