Finding the Fourth Proportional to 189,168.89, 261,054.86 and 104,288.99
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Solution
The fourth proportional to 189,168.89, 261,054.86 and 104,288.99 is: 143,919.79
Step by Step Solution
- Step 1: Write the proportion equation
189,168.89 : 261,054.86 = 104,288.99 : x - Step 2: Convert to fraction form
189,168.89/261,054.86 = 104,288.99/x - Step 3: Cross multiply
189,168.89x = 261,054.86 × 104,288.99 - Step 4: Simplify right side
189,168.89x = 27,225,147,815.18 - Step 5: Solve for x
x = 27,225,147,815.18/189,168.89 - Step 6: Final answer
x = 143,919.79
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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.