Finding the Fourth Proportional to 107,425.67, 161,138.57 and 40,850.42
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Solution
The fourth proportional to 107,425.67, 161,138.57 and 40,850.42 is: 61,275.65
Step by Step Solution
- Step 1: Write the proportion equation
107,425.67 : 161,138.57 = 40,850.42 : x - Step 2: Convert to fraction form
107,425.67/161,138.57 = 40,850.42/x - Step 3: Cross multiply
107,425.67x = 161,138.57 × 40,850.42 - Step 4: Simplify right side
107,425.67x = 6,582,577,252.75 - Step 5: Solve for x
x = 6,582,577,252.75/107,425.67 - Step 6: Final answer
x = 61,275.65
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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.