Finding the Fourth Proportional to 126,254.37, 189,374.13 and 47,361.99
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Solution
The fourth proportional to 126,254.37, 189,374.13 and 47,361.99 is: 71,040.20
Step by Step Solution
- Step 1: Write the proportion equation
126,254.37 : 189,374.13 = 47,361.99 : x - Step 2: Convert to fraction form
126,254.37/189,374.13 = 47,361.99/x - Step 3: Cross multiply
126,254.37x = 189,374.13 × 47,361.99 - Step 4: Simplify right side
126,254.37x = 8,969,135,651.32 - Step 5: Solve for x
x = 8,969,135,651.32/126,254.37 - Step 6: Final answer
x = 71,040.20
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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.