Finding the Fourth Proportional to 126,163.05, 189,261.99 and 46,190.54
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Solution
The fourth proportional to 126,163.05, 189,261.99 and 46,190.54 is: 69,292.18
Step by Step Solution
- Step 1: Write the proportion equation
126,163.05 : 189,261.99 = 46,190.54 : x - Step 2: Convert to fraction form
126,163.05/189,261.99 = 46,190.54/x - Step 3: Cross multiply
126,163.05x = 189,261.99 × 46,190.54 - Step 4: Simplify right side
126,163.05x = 8,742,112,573.26 - Step 5: Solve for x
x = 8,742,112,573.26/126,163.05 - Step 6: Final answer
x = 69,292.18
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.