Finding the Fourth Proportional to 99,922.12, 149,614.59 and 76,116.26
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Solution
The fourth proportional to 99,922.12, 149,614.59 and 76,116.26 is: 113,969.80
Step by Step Solution
- Step 1: Write the proportion equation
99,922.12 : 149,614.59 = 76,116.26 : x - Step 2: Convert to fraction form
99,922.12/149,614.59 = 76,116.26/x - Step 3: Cross multiply
99,922.12x = 149,614.59 × 76,116.26 - Step 4: Simplify right side
99,922.12x = 11,388,103,406.27 - Step 5: Solve for x
x = 11,388,103,406.27/99,922.12 - Step 6: Final answer
x = 113,969.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.