Finding the Fourth Proportional to 128,891.67, 193,291.36 and 44,629.21
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Solution
The fourth proportional to 128,891.67, 193,291.36 and 44,629.21 is: 66,927.84
Step by Step Solution
- Step 1: Write the proportion equation
128,891.67 : 193,291.36 = 44,629.21 : x - Step 2: Convert to fraction form
128,891.67/193,291.36 = 44,629.21/x - Step 3: Cross multiply
128,891.67x = 193,291.36 × 44,629.21 - Step 4: Simplify right side
128,891.67x = 8,626,440,473.48 - Step 5: Solve for x
x = 8,626,440,473.48/128,891.67 - Step 6: Final answer
x = 66,927.84
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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.