Finding the Fourth Proportional to 120,813.53, 166,724.73 and 66,367.99
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Solution
The fourth proportional to 120,813.53, 166,724.73 and 66,367.99 is: 91,588.96
Step by Step Solution
- Step 1: Write the proportion equation
120,813.53 : 166,724.73 = 66,367.99 : x - Step 2: Convert to fraction form
120,813.53/166,724.73 = 66,367.99/x - Step 3: Cross multiply
120,813.53x = 166,724.73 × 66,367.99 - Step 4: Simplify right side
120,813.53x = 11,065,185,213.39 - Step 5: Solve for x
x = 11,065,185,213.39/120,813.53 - Step 6: Final answer
x = 91,588.96
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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.