Finding the Fourth Proportional to 154,399.77, 212,902.49 and 100,584.99
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Solution
The fourth proportional to 154,399.77, 212,902.49 and 100,584.99 is: 138,697.06
Step by Step Solution
- Step 1: Write the proportion equation
154,399.77 : 212,902.49 = 100,584.99 : x - Step 2: Convert to fraction form
154,399.77/212,902.49 = 100,584.99/x - Step 3: Cross multiply
154,399.77x = 212,902.49 × 100,584.99 - Step 4: Simplify right side
154,399.77x = 21,414,795,123.08 - Step 5: Solve for x
x = 21,414,795,123.08/154,399.77 - Step 6: Final answer
x = 138,697.06
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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.