Finding the Fourth Proportional to 115,371.37, 159,213.99 and 66,984.63
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Solution
The fourth proportional to 115,371.37, 159,213.99 and 66,984.63 is: 92,439.66
Step by Step Solution
- Step 1: Write the proportion equation
115,371.37 : 159,213.99 = 66,984.63 : x - Step 2: Convert to fraction form
115,371.37/159,213.99 = 66,984.63/x - Step 3: Cross multiply
115,371.37x = 159,213.99 × 66,984.63 - Step 4: Simplify right side
115,371.37x = 10,664,890,210.97 - Step 5: Solve for x
x = 10,664,890,210.97/115,371.37 - Step 6: Final answer
x = 92,439.66
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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.