Finding the Fourth Proportional to 126,588.63, 174,736.29 and 72,895.05
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Solution
The fourth proportional to 126,588.63, 174,736.29 and 72,895.05 is: 100,620.49
Step by Step Solution
- Step 1: Write the proportion equation
126,588.63 : 174,736.29 = 72,895.05 : x - Step 2: Convert to fraction form
126,588.63/174,736.29 = 72,895.05/x - Step 3: Cross multiply
126,588.63x = 174,736.29 × 72,895.05 - Step 4: Simplify right side
126,588.63x = 12,737,410,596.36 - Step 5: Solve for x
x = 12,737,410,596.36/126,588.63 - Step 6: Final answer
x = 100,620.49
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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.