Finding the Fourth Proportional to 135,275.74, 186,645.49 and 80,805.62
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Solution
The fourth proportional to 135,275.74, 186,645.49 and 80,805.62 is: 111,490.83
Step by Step Solution
- Step 1: Write the proportion equation
135,275.74 : 186,645.49 = 80,805.62 : x - Step 2: Convert to fraction form
135,275.74/186,645.49 = 80,805.62/x - Step 3: Cross multiply
135,275.74x = 186,645.49 × 80,805.62 - Step 4: Simplify right side
135,275.74x = 15,082,004,539.65 - Step 5: Solve for x
x = 15,082,004,539.65/135,275.74 - Step 6: Final answer
x = 111,490.83
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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.