Finding the Fourth Proportional to 107,736.21, 161,604.32 and 55,116.99
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Solution
The fourth proportional to 107,736.21, 161,604.32 and 55,116.99 is: 82,675.49
Step by Step Solution
- Step 1: Write the proportion equation
107,736.21 : 161,604.32 = 55,116.99 : x - Step 2: Convert to fraction form
107,736.21/161,604.32 = 55,116.99/x - Step 3: Cross multiply
107,736.21x = 161,604.32 × 55,116.99 - Step 4: Simplify right side
107,736.21x = 8,907,144,329.86 - Step 5: Solve for x
x = 8,907,144,329.86/107,736.21 - Step 6: Final answer
x = 82,675.49
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Similar ratio
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1.5x scale
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.