Finding the Fourth Proportional to 107,790.66, 161,542.70 and 57,179.26
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Solution
The fourth proportional to 107,790.66, 161,542.70 and 57,179.26 is: 85,692.88
Step by Step Solution
- Step 1: Write the proportion equation
107,790.66 : 161,542.70 = 57,179.26 : x - Step 2: Convert to fraction form
107,790.66/161,542.70 = 57,179.26/x - Step 3: Cross multiply
107,790.66x = 161,542.70 × 57,179.26 - Step 4: Simplify right side
107,790.66x = 9,236,892,044.40 - Step 5: Solve for x
x = 9,236,892,044.40/107,790.66 - Step 6: Final answer
x = 85,692.88
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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.