Finding the Fourth Proportional to 131,006.55, 196,369.66 and 67,762.99
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Solution
The fourth proportional to 131,006.55, 196,369.66 and 67,762.99 is: 101,571.98
Step by Step Solution
- Step 1: Write the proportion equation
131,006.55 : 196,369.66 = 67,762.99 : x - Step 2: Convert to fraction form
131,006.55/196,369.66 = 67,762.99/x - Step 3: Cross multiply
131,006.55x = 196,369.66 × 67,762.99 - Step 4: Simplify right side
131,006.55x = 13,306,595,306.88 - Step 5: Solve for x
x = 13,306,595,306.88/131,006.55 - Step 6: Final answer
x = 101,571.98
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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.