Finding the Fourth Proportional to 120,324.42, 166,045.68 and 66,608.28
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Solution
The fourth proportional to 120,324.42, 166,045.68 and 66,608.28 is: 91,918.31
Step by Step Solution
- Step 1: Write the proportion equation
120,324.42 : 166,045.68 = 66,608.28 : x - Step 2: Convert to fraction form
120,324.42/166,045.68 = 66,608.28/x - Step 3: Cross multiply
120,324.42x = 166,045.68 × 66,608.28 - Step 4: Simplify right side
120,324.42x = 11,060,017,146.23 - Step 5: Solve for x
x = 11,060,017,146.23/120,324.42 - Step 6: Final answer
x = 91,918.31
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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.