Finding the Fourth Proportional to 131,623.44, 181,639.67 and 71,194.02
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Solution
The fourth proportional to 131,623.44, 181,639.67 and 71,194.02 is: 98,247.38
Step by Step Solution
- Step 1: Write the proportion equation
131,623.44 : 181,639.67 = 71,194.02 : x - Step 2: Convert to fraction form
131,623.44/181,639.67 = 71,194.02/x - Step 3: Cross multiply
131,623.44x = 181,639.67 × 71,194.02 - Step 4: Simplify right side
131,623.44x = 12,931,657,942.80 - Step 5: Solve for x
x = 12,931,657,942.80/131,623.44 - Step 6: Final answer
x = 98,247.38
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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.