Finding the Fourth Proportional to 154,173.84, 212,743.57 and 86,183.66
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Solution
The fourth proportional to 154,173.84, 212,743.57 and 86,183.66 is: 118,924.32
Step by Step Solution
- Step 1: Write the proportion equation
154,173.84 : 212,743.57 = 86,183.66 : x - Step 2: Convert to fraction form
154,173.84/212,743.57 = 86,183.66/x - Step 3: Cross multiply
154,173.84x = 212,743.57 × 86,183.66 - Step 4: Simplify right side
154,173.84x = 18,335,019,504.07 - Step 5: Solve for x
x = 18,335,019,504.07/154,173.84 - Step 6: Final answer
x = 118,924.32
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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.