Finding the Fourth Proportional to 107,875.20, 161,868.26 and 82,736.20
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Solution
The fourth proportional to 107,875.20, 161,868.26 and 82,736.20 is: 124,146.84
Step by Step Solution
- Step 1: Write the proportion equation
107,875.20 : 161,868.26 = 82,736.20 : x - Step 2: Convert to fraction form
107,875.20/161,868.26 = 82,736.20/x - Step 3: Cross multiply
107,875.20x = 161,868.26 × 82,736.20 - Step 4: Simplify right side
107,875.20x = 13,392,365,142.19 - Step 5: Solve for x
x = 13,392,365,142.19/107,875.20 - Step 6: Final answer
x = 124,146.84
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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.