Finding the Fourth Proportional to 107,994.21, 149,034.95 and 67,704.19
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Solution
The fourth proportional to 107,994.21, 149,034.95 and 67,704.19 is: 93,433.63
Step by Step Solution
- Step 1: Write the proportion equation
107,994.21 : 149,034.95 = 67,704.19 : x - Step 2: Convert to fraction form
107,994.21/149,034.95 = 67,704.19/x - Step 3: Cross multiply
107,994.21x = 149,034.95 × 67,704.19 - Step 4: Simplify right side
107,994.21x = 10,090,290,571.44 - Step 5: Solve for x
x = 10,090,290,571.44/107,994.21 - Step 6: Final answer
x = 93,433.63
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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.