Finding the Fourth Proportional to 102,906.06, 141,874.23 and 74,201.70
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Solution
The fourth proportional to 102,906.06, 141,874.23 and 74,201.70 is: 102,300.19
Step by Step Solution
- Step 1: Write the proportion equation
102,906.06 : 141,874.23 = 74,201.70 : x - Step 2: Convert to fraction form
102,906.06/141,874.23 = 74,201.70/x - Step 3: Cross multiply
102,906.06x = 141,874.23 × 74,201.70 - Step 4: Simplify right side
102,906.06x = 10,527,309,052.19 - Step 5: Solve for x
x = 10,527,309,052.19/102,906.06 - Step 6: Final answer
x = 102,300.19
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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.