Finding the Fourth Proportional to 107,907.80, 161,861.70 and 107,216.60
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Solution
The fourth proportional to 107,907.80, 161,861.70 and 107,216.60 is: 160,824.90
Step by Step Solution
- Step 1: Write the proportion equation
107,907.80 : 161,861.70 = 107,216.60 : x - Step 2: Convert to fraction form
107,907.80/161,861.70 = 107,216.60/x - Step 3: Cross multiply
107,907.80x = 161,861.70 × 107,216.60 - Step 4: Simplify right side
107,907.80x = 17,354,261,144.22 - Step 5: Solve for x
x = 17,354,261,144.22/107,907.80 - Step 6: Final answer
x = 160,824.90
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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.