Finding the Fourth Proportional to 120,880.05, 166,804.71 and 69,896.09
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Solution
The fourth proportional to 120,880.05, 166,804.71 and 69,896.09 is: 96,450.95
Step by Step Solution
- Step 1: Write the proportion equation
120,880.05 : 166,804.71 = 69,896.09 : x - Step 2: Convert to fraction form
120,880.05/166,804.71 = 69,896.09/x - Step 3: Cross multiply
120,880.05x = 166,804.71 × 69,896.09 - Step 4: Simplify right side
120,880.05x = 11,658,996,239.21 - Step 5: Solve for x
x = 11,658,996,239.21/120,880.05 - Step 6: Final answer
x = 96,450.95
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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.