Finding the Fourth Proportional to 129,260.63, 194,072.60 and 66,126.04
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Solution
The fourth proportional to 129,260.63, 194,072.60 and 66,126.04 is: 99,281.99
Step by Step Solution
- Step 1: Write the proportion equation
129,260.63 : 194,072.60 = 66,126.04 : x - Step 2: Convert to fraction form
129,260.63/194,072.60 = 66,126.04/x - Step 3: Cross multiply
129,260.63x = 194,072.60 × 66,126.04 - Step 4: Simplify right side
129,260.63x = 12,833,252,179.87 - Step 5: Solve for x
x = 12,833,252,179.87/129,260.63 - Step 6: Final answer
x = 99,281.99
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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.