Finding the Fourth Proportional to 115,171.20, 158,941.16 and 64,183.99
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Solution
The fourth proportional to 115,171.20, 158,941.16 and 64,183.99 is: 88,576.64
Step by Step Solution
- Step 1: Write the proportion equation
115,171.20 : 158,941.16 = 64,183.99 : x - Step 2: Convert to fraction form
115,171.20/158,941.16 = 64,183.99/x - Step 3: Cross multiply
115,171.20x = 158,941.16 × 64,183.99 - Step 4: Simplify right side
115,171.20x = 10,201,477,824.03 - Step 5: Solve for x
x = 10,201,477,824.03/115,171.20 - Step 6: Final answer
x = 88,576.64
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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.