Finding the Fourth Proportional to 129,603.63, 194,405.44 and 31,107.63
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Solution
The fourth proportional to 129,603.63, 194,405.44 and 31,107.63 is: 46,661.44
Step by Step Solution
- Step 1: Write the proportion equation
129,603.63 : 194,405.44 = 31,107.63 : x - Step 2: Convert to fraction form
129,603.63/194,405.44 = 31,107.63/x - Step 3: Cross multiply
129,603.63x = 194,405.44 × 31,107.63 - Step 4: Simplify right side
129,603.63x = 6,047,491,447.71 - Step 5: Solve for x
x = 6,047,491,447.71/129,603.63 - Step 6: Final answer
x = 46,661.44
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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.