Finding the Fourth Proportional to 129,551.40, 194,618.70 and 126,052.20
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Solution
The fourth proportional to 129,551.40, 194,618.70 and 126,052.20 is: 189,362.02
Step by Step Solution
- Step 1: Write the proportion equation
129,551.40 : 194,618.70 = 126,052.20 : x - Step 2: Convert to fraction form
129,551.40/194,618.70 = 126,052.20/x - Step 3: Cross multiply
129,551.40x = 194,618.70 × 126,052.20 - Step 4: Simplify right side
129,551.40x = 24,532,115,296.14 - Step 5: Solve for x
x = 24,532,115,296.14/129,551.40 - Step 6: Final answer
x = 189,362.02
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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.