Finding the Fourth Proportional to 135,006.72, 186,305.67 and 74,576.07
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Solution
The fourth proportional to 135,006.72, 186,305.67 and 74,576.07 is: 102,912.98
Step by Step Solution
- Step 1: Write the proportion equation
135,006.72 : 186,305.67 = 74,576.07 : x - Step 2: Convert to fraction form
135,006.72/186,305.67 = 74,576.07/x - Step 3: Cross multiply
135,006.72x = 186,305.67 × 74,576.07 - Step 4: Simplify right side
135,006.72x = 13,893,943,382.91 - Step 5: Solve for x
x = 13,893,943,382.91/135,006.72 - Step 6: Final answer
x = 102,912.98
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.