Finding the Fourth Proportional to 102,201.66, 141,198.26 and 78,087.02
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Solution
The fourth proportional to 102,201.66, 141,198.26 and 78,087.02 is: 107,882.32
Step by Step Solution
- Step 1: Write the proportion equation
102,201.66 : 141,198.26 = 78,087.02 : x - Step 2: Convert to fraction form
102,201.66/141,198.26 = 78,087.02/x - Step 3: Cross multiply
102,201.66x = 141,198.26 × 78,087.02 - Step 4: Simplify right side
102,201.66x = 11,025,751,886.76 - Step 5: Solve for x
x = 11,025,751,886.76/102,201.66 - Step 6: Final answer
x = 107,882.32
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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.