Finding the Fourth Proportional to 192,851.60, 266,163.12 and 107,974.13
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Solution
The fourth proportional to 192,851.60, 266,163.12 and 107,974.13 is: 149,019.92
Step by Step Solution
- Step 1: Write the proportion equation
192,851.60 : 266,163.12 = 107,974.13 : x - Step 2: Convert to fraction form
192,851.60/266,163.12 = 107,974.13/x - Step 3: Cross multiply
192,851.60x = 266,163.12 × 107,974.13 - Step 4: Simplify right side
192,851.60x = 28,738,729,989.27 - Step 5: Solve for x
x = 28,738,729,989.27/192,851.60 - Step 6: Final answer
x = 149,019.92
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1.5x scale
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.