Finding the Fourth Proportional to 138,120.44, 207,166.61 and 43,351.35
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Solution
The fourth proportional to 138,120.44, 207,166.61 and 43,351.35 is: 65,022.62
Step by Step Solution
- Step 1: Write the proportion equation
138,120.44 : 207,166.61 = 43,351.35 : x - Step 2: Convert to fraction form
138,120.44/207,166.61 = 43,351.35/x - Step 3: Cross multiply
138,120.44x = 207,166.61 × 43,351.35 - Step 4: Simplify right side
138,120.44x = 8,980,952,715.24 - Step 5: Solve for x
x = 8,980,952,715.24/138,120.44 - Step 6: Final answer
x = 65,022.62
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.