Finding the Fourth Proportional to 131,986.25, 197,868.13 and 89,747.99
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Solution
The fourth proportional to 131,986.25, 197,868.13 and 89,747.99 is: 134,546.34
Step by Step Solution
- Step 1: Write the proportion equation
131,986.25 : 197,868.13 = 89,747.99 : x - Step 2: Convert to fraction form
131,986.25/197,868.13 = 89,747.99/x - Step 3: Cross multiply
131,986.25x = 197,868.13 × 89,747.99 - Step 4: Simplify right side
131,986.25x = 17,758,265,738.85 - Step 5: Solve for x
x = 17,758,265,738.85/131,986.25 - Step 6: Final answer
x = 134,546.34
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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.