Finding the Fourth Proportional to 135,321.17, 186,740.60 and 74,891.84
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Solution
The fourth proportional to 135,321.17, 186,740.60 and 74,891.84 is: 103,349.29
Step by Step Solution
- Step 1: Write the proportion equation
135,321.17 : 186,740.60 = 74,891.84 : x - Step 2: Convert to fraction form
135,321.17/186,740.60 = 74,891.84/x - Step 3: Cross multiply
135,321.17x = 186,740.60 × 74,891.84 - Step 4: Simplify right side
135,321.17x = 13,985,345,828.54 - Step 5: Solve for x
x = 13,985,345,828.54/135,321.17 - Step 6: Final answer
x = 103,349.29
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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.