Finding the Fourth Proportional to 135,174.71, 186,539.15 and 74,744.03
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Solution
The fourth proportional to 135,174.71, 186,539.15 and 74,744.03 is: 103,145.68
Step by Step Solution
- Step 1: Write the proportion equation
135,174.71 : 186,539.15 = 74,744.03 : x - Step 2: Convert to fraction form
135,174.71/186,539.15 = 74,744.03/x - Step 3: Cross multiply
135,174.71x = 186,539.15 × 74,744.03 - Step 4: Simplify right side
135,174.71x = 13,942,686,891.08 - Step 5: Solve for x
x = 13,942,686,891.08/135,174.71 - Step 6: Final answer
x = 103,145.68
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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.