Finding the Fourth Proportional to 126,824.20, 190,106.70 and 74,206.60
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Solution
The fourth proportional to 126,824.20, 190,106.70 and 74,206.60 is: 111,234.07
Step by Step Solution
- Step 1: Write the proportion equation
126,824.20 : 190,106.70 = 74,206.60 : x - Step 2: Convert to fraction form
126,824.20/190,106.70 = 74,206.60/x - Step 3: Cross multiply
126,824.20x = 190,106.70 × 74,206.60 - Step 4: Simplify right side
126,824.20x = 14,107,171,844.22 - Step 5: Solve for x
x = 14,107,171,844.22/126,824.20 - Step 6: Final answer
x = 111,234.07
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.