Finding the Fourth Proportional to 126,418.53, 189,635.08 and 47,533.44
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Solution
The fourth proportional to 126,418.53, 189,635.08 and 47,533.44 is: 71,302.90
Step by Step Solution
- Step 1: Write the proportion equation
126,418.53 : 189,635.08 = 47,533.44 : x - Step 2: Convert to fraction form
126,418.53/189,635.08 = 47,533.44/x - Step 3: Cross multiply
126,418.53x = 189,635.08 × 47,533.44 - Step 4: Simplify right side
126,418.53x = 9,014,007,628.96 - Step 5: Solve for x
x = 9,014,007,628.96/126,418.53 - Step 6: Final answer
x = 71,302.90
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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.