Finding the Fourth Proportional to 135,034.40, 186,349.42 and 74,606.44
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Solution
The fourth proportional to 135,034.40, 186,349.42 and 74,606.44 is: 102,957.96
Step by Step Solution
- Step 1: Write the proportion equation
135,034.40 : 186,349.42 = 74,606.44 : x - Step 2: Convert to fraction form
135,034.40/186,349.42 = 74,606.44/x - Step 3: Cross multiply
135,034.40x = 186,349.42 × 74,606.44 - Step 4: Simplify right side
135,034.40x = 13,902,866,822.26 - Step 5: Solve for x
x = 13,902,866,822.26/135,034.40 - Step 6: Final answer
x = 102,957.96
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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.