Finding the Fourth Proportional to 126,361.62, 189,378.36 and 51,394.50
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Solution
The fourth proportional to 126,361.62, 189,378.36 and 51,394.50 is: 77,025.02
Step by Step Solution
- Step 1: Write the proportion equation
126,361.62 : 189,378.36 = 51,394.50 : x - Step 2: Convert to fraction form
126,361.62/189,378.36 = 51,394.50/x - Step 3: Cross multiply
126,361.62x = 189,378.36 × 51,394.50 - Step 4: Simplify right side
126,361.62x = 9,733,006,123.02 - Step 5: Solve for x
x = 9,733,006,123.02/126,361.62 - Step 6: Final answer
x = 77,025.02
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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.