Finding the Fourth Proportional to 128,151.66, 192,268.62 and 61,596.62
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Solution
The fourth proportional to 128,151.66, 192,268.62 and 61,596.62 is: 92,414.70
Step by Step Solution
- Step 1: Write the proportion equation
128,151.66 : 192,268.62 = 61,596.62 : x - Step 2: Convert to fraction form
128,151.66/192,268.62 = 61,596.62/x - Step 3: Cross multiply
128,151.66x = 192,268.62 × 61,596.62 - Step 4: Simplify right side
128,151.66x = 11,843,097,124.06 - Step 5: Solve for x
x = 11,843,097,124.06/128,151.66 - Step 6: Final answer
x = 92,414.70
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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.