Finding the Fourth Proportional to 125,716.80, 188,575.20 and 97,723.20
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Solution
The fourth proportional to 125,716.80, 188,575.20 and 97,723.20 is: 146,584.80
Step by Step Solution
- Step 1: Write the proportion equation
125,716.80 : 188,575.20 = 97,723.20 : x - Step 2: Convert to fraction form
125,716.80/188,575.20 = 97,723.20/x - Step 3: Cross multiply
125,716.80x = 188,575.20 × 97,723.20 - Step 4: Simplify right side
125,716.80x = 18,428,171,984.64 - Step 5: Solve for x
x = 18,428,171,984.64/125,716.80 - Step 6: Final answer
x = 146,584.80
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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.