Finding the Fourth Proportional to 132,344.75, 182,635.76 and 72,728.75
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Solution
The fourth proportional to 132,344.75, 182,635.76 and 72,728.75 is: 100,365.68
Step by Step Solution
- Step 1: Write the proportion equation
132,344.75 : 182,635.76 = 72,728.75 : x - Step 2: Convert to fraction form
132,344.75/182,635.76 = 72,728.75/x - Step 3: Cross multiply
132,344.75x = 182,635.76 × 72,728.75 - Step 4: Simplify right side
132,344.75x = 13,282,870,530.10 - Step 5: Solve for x
x = 13,282,870,530.10/132,344.75 - Step 6: Final answer
x = 100,365.68
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1.5x scale
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.