Finding the Fourth Proportional to 107,692.24, 161,571.42 and 55,138.62
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Solution
The fourth proportional to 107,692.24, 161,571.42 and 55,138.62 is: 82,724.86
Step by Step Solution
- Step 1: Write the proportion equation
107,692.24 : 161,571.42 = 55,138.62 : x - Step 2: Convert to fraction form
107,692.24/161,571.42 = 55,138.62/x - Step 3: Cross multiply
107,692.24x = 161,571.42 × 55,138.62 - Step 4: Simplify right side
107,692.24x = 8,908,825,130.24 - Step 5: Solve for x
x = 8,908,825,130.24/107,692.24 - Step 6: Final answer
x = 82,724.86
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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.