Finding the Fourth Proportional to 120,532.99, 166,324.32 and 66,813.43
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Solution
The fourth proportional to 120,532.99, 166,324.32 and 66,813.43 is: 92,196.32
Step by Step Solution
- Step 1: Write the proportion equation
120,532.99 : 166,324.32 = 66,813.43 : x - Step 2: Convert to fraction form
120,532.99/166,324.32 = 66,813.43/x - Step 3: Cross multiply
120,532.99x = 166,324.32 × 66,813.43 - Step 4: Simplify right side
120,532.99x = 11,112,698,311.62 - Step 5: Solve for x
x = 11,112,698,311.62/120,532.99 - Step 6: Final answer
x = 92,196.32
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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.