Finding the Fourth Proportional to 129,679.00, 194,471.71 and 54,804.94
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Solution
The fourth proportional to 129,679.00, 194,471.71 and 54,804.94 is: 82,187.63
Step by Step Solution
- Step 1: Write the proportion equation
129,679.00 : 194,471.71 = 54,804.94 : x - Step 2: Convert to fraction form
129,679.00/194,471.71 = 54,804.94/x - Step 3: Cross multiply
129,679.00x = 194,471.71 × 54,804.94 - Step 4: Simplify right side
129,679.00x = 10,658,009,775.06 - Step 5: Solve for x
x = 10,658,009,775.06/129,679.00 - Step 6: Final answer
x = 82,187.63
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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.