Finding the Fourth Proportional to 102,901.70, 154,266.15 and 53,653.70
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Solution
The fourth proportional to 102,901.70, 154,266.15 and 53,653.70 is: 80,435.50
Step by Step Solution
- Step 1: Write the proportion equation
102,901.70 : 154,266.15 = 53,653.70 : x - Step 2: Convert to fraction form
102,901.70/154,266.15 = 53,653.70/x - Step 3: Cross multiply
102,901.70x = 154,266.15 × 53,653.70 - Step 4: Simplify right side
102,901.70x = 8,276,949,732.26 - Step 5: Solve for x
x = 8,276,949,732.26/102,901.70 - Step 6: Final answer
x = 80,435.50
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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.