Finding the Fourth Proportional to 126,589.63, 174,737.67 and 72,896.05
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Solution
The fourth proportional to 126,589.63, 174,737.67 and 72,896.05 is: 100,621.88
Step by Step Solution
- Step 1: Write the proportion equation
126,589.63 : 174,737.67 = 72,896.05 : x - Step 2: Convert to fraction form
126,589.63/174,737.67 = 72,896.05/x - Step 3: Cross multiply
126,589.63x = 174,737.67 × 72,896.05 - Step 4: Simplify right side
126,589.63x = 12,737,685,929.20 - Step 5: Solve for x
x = 12,737,685,929.20/126,589.63 - Step 6: Final answer
x = 100,621.88
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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.