Finding the Fourth Proportional to 128,522.26, 177,604.70 and 96,635.80
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Solution
The fourth proportional to 128,522.26, 177,604.70 and 96,635.80 is: 133,540.85
Step by Step Solution
- Step 1: Write the proportion equation
128,522.26 : 177,604.70 = 96,635.80 : x - Step 2: Convert to fraction form
128,522.26/177,604.70 = 96,635.80/x - Step 3: Cross multiply
128,522.26x = 177,604.70 × 96,635.80 - Step 4: Simplify right side
128,522.26x = 17,162,972,268.26 - Step 5: Solve for x
x = 17,162,972,268.26/128,522.26 - Step 6: Final answer
x = 133,540.85
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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.