Finding the Fourth Proportional to 135,042.96, 186,343.08 and 74,609.88
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Solution
The fourth proportional to 135,042.96, 186,343.08 and 74,609.88 is: 102,952.68
Step by Step Solution
- Step 1: Write the proportion equation
135,042.96 : 186,343.08 = 74,609.88 : x - Step 2: Convert to fraction form
135,042.96/186,343.08 = 74,609.88/x - Step 3: Cross multiply
135,042.96x = 186,343.08 × 74,609.88 - Step 4: Simplify right side
135,042.96x = 13,903,034,837.63 - Step 5: Solve for x
x = 13,903,034,837.63/135,042.96 - Step 6: Final answer
x = 102,952.68
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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.