Finding the Fourth Proportional to 129,576.09, 194,280.93 and 54,675.75
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Solution
The fourth proportional to 129,576.09, 194,280.93 and 54,675.75 is: 81,978.52
Step by Step Solution
- Step 1: Write the proportion equation
129,576.09 : 194,280.93 = 54,675.75 : x - Step 2: Convert to fraction form
129,576.09/194,280.93 = 54,675.75/x - Step 3: Cross multiply
129,576.09x = 194,280.93 × 54,675.75 - Step 4: Simplify right side
129,576.09x = 10,622,455,558.45 - Step 5: Solve for x
x = 10,622,455,558.45/129,576.09 - Step 6: Final answer
x = 81,978.52
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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.