Finding the Fourth Proportional to 120,455.98, 166,224.36 and 66,743.26
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Solution
The fourth proportional to 120,455.98, 166,224.36 and 66,743.26 is: 92,102.99
Step by Step Solution
- Step 1: Write the proportion equation
120,455.98 : 166,224.36 = 66,743.26 : x - Step 2: Convert to fraction form
120,455.98/166,224.36 = 66,743.26/x - Step 3: Cross multiply
120,455.98x = 166,224.36 × 66,743.26 - Step 4: Simplify right side
120,455.98x = 11,094,355,677.81 - Step 5: Solve for x
x = 11,094,355,677.81/120,455.98 - Step 6: Final answer
x = 92,102.99
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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.