Finding the Fourth Proportional to 142,519.62, 196,591.37 and 94,121.99
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Solution
The fourth proportional to 142,519.62, 196,591.37 and 94,121.99 is: 129,831.74
Step by Step Solution
- Step 1: Write the proportion equation
142,519.62 : 196,591.37 = 94,121.99 : x - Step 2: Convert to fraction form
142,519.62/196,591.37 = 94,121.99/x - Step 3: Cross multiply
142,519.62x = 196,591.37 × 94,121.99 - Step 4: Simplify right side
142,519.62x = 18,503,570,961.23 - Step 5: Solve for x
x = 18,503,570,961.23/142,519.62 - Step 6: Final answer
x = 129,831.74
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.