Finding the Fourth Proportional to 84,093.28, 115,928.14 and 66,157.14
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Solution
The fourth proportional to 84,093.28, 115,928.14 and 66,157.14 is: 91,201.99
Step by Step Solution
- Step 1: Write the proportion equation
84,093.28 : 115,928.14 = 66,157.14 : x - Step 2: Convert to fraction form
84,093.28/115,928.14 = 66,157.14/x - Step 3: Cross multiply
84,093.28x = 115,928.14 × 66,157.14 - Step 4: Simplify right side
84,093.28x = 7,669,474,187.92 - Step 5: Solve for x
x = 7,669,474,187.92/84,093.28 - Step 6: Final answer
x = 91,201.99
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1.5x scale
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.