Finding the Fourth Proportional to 197,861.13, 273,053.43 and 112,986.09
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Solution
The fourth proportional to 197,861.13, 273,053.43 and 112,986.09 is: 155,923.70
Step by Step Solution
- Step 1: Write the proportion equation
197,861.13 : 273,053.43 = 112,986.09 : x - Step 2: Convert to fraction form
197,861.13/273,053.43 = 112,986.09/x - Step 3: Cross multiply
197,861.13x = 273,053.43 × 112,986.09 - Step 4: Simplify right side
197,861.13x = 30,851,239,416.79 - Step 5: Solve for x
x = 30,851,239,416.79/197,861.13 - Step 6: Final answer
x = 155,923.70
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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.