Finding the Fourth Proportional to 120,591.99, 166,405.96 and 66,876.84
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Solution
The fourth proportional to 120,591.99, 166,405.96 and 66,876.84 is: 92,283.95
Step by Step Solution
- Step 1: Write the proportion equation
120,591.99 : 166,405.96 = 66,876.84 : x - Step 2: Convert to fraction form
120,591.99/166,405.96 = 66,876.84/x - Step 3: Cross multiply
120,591.99x = 166,405.96 × 66,876.84 - Step 4: Simplify right side
120,591.99x = 11,128,704,845.56 - Step 5: Solve for x
x = 11,128,704,845.56/120,591.99 - Step 6: Final answer
x = 92,283.95
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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.