Finding the Fourth Proportional to 107,866.75, 148,861.21 and 60,120.44
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Solution
The fourth proportional to 107,866.75, 148,861.21 and 60,120.44 is: 82,969.05
Step by Step Solution
- Step 1: Write the proportion equation
107,866.75 : 148,861.21 = 60,120.44 : x - Step 2: Convert to fraction form
107,866.75/148,861.21 = 60,120.44/x - Step 3: Cross multiply
107,866.75x = 148,861.21 × 60,120.44 - Step 4: Simplify right side
107,866.75x = 8,949,601,444.13 - Step 5: Solve for x
x = 8,949,601,444.13/107,866.75 - Step 6: Final answer
x = 82,969.05
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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.