Finding the Fourth Proportional to 79,231.80, 118,847.70 and 75,343.80
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Solution
The fourth proportional to 79,231.80, 118,847.70 and 75,343.80 is: 113,015.70
Step by Step Solution
- Step 1: Write the proportion equation
79,231.80 : 118,847.70 = 75,343.80 : x - Step 2: Convert to fraction form
79,231.80/118,847.70 = 75,343.80/x - Step 3: Cross multiply
79,231.80x = 118,847.70 × 75,343.80 - Step 4: Simplify right side
79,231.80x = 8,954,437,339.26 - Step 5: Solve for x
x = 8,954,437,339.26/79,231.80 - Step 6: Final answer
x = 113,015.70
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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.