Finding the Fourth Proportional to 138,896.44, 208,282.44 and 82,763.08
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Solution
The fourth proportional to 138,896.44, 208,282.44 and 82,763.08 is: 124,107.55
Step by Step Solution
- Step 1: Write the proportion equation
138,896.44 : 208,282.44 = 82,763.08 : x - Step 2: Convert to fraction form
138,896.44/208,282.44 = 82,763.08/x - Step 3: Cross multiply
138,896.44x = 208,282.44 × 82,763.08 - Step 4: Simplify right side
138,896.44x = 17,238,096,244.32 - Step 5: Solve for x
x = 17,238,096,244.32/138,896.44 - Step 6: Final answer
x = 124,107.55
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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.