Finding the Fourth Proportional to 80,605.73, 120,892.85 and 76,604.99
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Solution
The fourth proportional to 80,605.73, 120,892.85 and 76,604.99 is: 114,892.52
Step by Step Solution
- Step 1: Write the proportion equation
80,605.73 : 120,892.85 = 76,604.99 : x - Step 2: Convert to fraction form
80,605.73/120,892.85 = 76,604.99/x - Step 3: Cross multiply
80,605.73x = 120,892.85 × 76,604.99 - Step 4: Simplify right side
80,605.73x = 9,260,995,182.30 - Step 5: Solve for x
x = 9,260,995,182.30/80,605.73 - Step 6: Final answer
x = 114,892.52
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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.