Finding the Fourth Proportional to 147,804.09, 203,969.91 and 80,736.09
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Solution
The fourth proportional to 147,804.09, 203,969.91 and 80,736.09 is: 111,415.95
Step by Step Solution
- Step 1: Write the proportion equation
147,804.09 : 203,969.91 = 80,736.09 : x - Step 2: Convert to fraction form
147,804.09/203,969.91 = 80,736.09/x - Step 3: Cross multiply
147,804.09x = 203,969.91 × 80,736.09 - Step 4: Simplify right side
147,804.09x = 16,467,733,011.05 - Step 5: Solve for x
x = 16,467,733,011.05/147,804.09 - Step 6: Final answer
x = 111,415.95
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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.