Finding the Fourth Proportional to 126,361.14, 189,442.62 and 63,178.44
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Solution
The fourth proportional to 126,361.14, 189,442.62 and 63,178.44 is: 94,718.12
Step by Step Solution
- Step 1: Write the proportion equation
126,361.14 : 189,442.62 = 63,178.44 : x - Step 2: Convert to fraction form
126,361.14/189,442.62 = 63,178.44/x - Step 3: Cross multiply
126,361.14x = 189,442.62 × 63,178.44 - Step 4: Simplify right side
126,361.14x = 11,968,689,201.11 - Step 5: Solve for x
x = 11,968,689,201.11/126,361.14 - Step 6: Final answer
x = 94,718.12
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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.