Finding the Fourth Proportional to 189,201.86, 261,093.66 and 103,162.44
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Solution
The fourth proportional to 189,201.86, 261,093.66 and 103,162.44 is: 142,361.49
Step by Step Solution
- Step 1: Write the proportion equation
189,201.86 : 261,093.66 = 103,162.44 : x - Step 2: Convert to fraction form
189,201.86/261,093.66 = 103,162.44/x - Step 3: Cross multiply
189,201.86x = 261,093.66 × 103,162.44 - Step 4: Simplify right side
189,201.86x = 26,935,059,034.13 - Step 5: Solve for x
x = 26,935,059,034.13/189,201.86 - Step 6: Final answer
x = 142,361.49
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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.