Finding the Fourth Proportional to 150,435.09, 225,293.94 and 87,121.44
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Solution
The fourth proportional to 150,435.09, 225,293.94 and 87,121.44 is: 130,474.43
Step by Step Solution
- Step 1: Write the proportion equation
150,435.09 : 225,293.94 = 87,121.44 : x - Step 2: Convert to fraction form
150,435.09/225,293.94 = 87,121.44/x - Step 3: Cross multiply
150,435.09x = 225,293.94 × 87,121.44 - Step 4: Simplify right side
150,435.09x = 19,627,932,476.07 - Step 5: Solve for x
x = 19,627,932,476.07/150,435.09 - Step 6: Final answer
x = 130,474.43
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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.