Finding the Fourth Proportional to 102,943.20, 154,427.24 and 36,369.70
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Solution
The fourth proportional to 102,943.20, 154,427.24 and 36,369.70 is: 54,558.95
Step by Step Solution
- Step 1: Write the proportion equation
102,943.20 : 154,427.24 = 36,369.70 : x - Step 2: Convert to fraction form
102,943.20/154,427.24 = 36,369.70/x - Step 3: Cross multiply
102,943.20x = 154,427.24 × 36,369.70 - Step 4: Simplify right side
102,943.20x = 5,616,472,390.63 - Step 5: Solve for x
x = 5,616,472,390.63/102,943.20 - Step 6: Final answer
x = 54,558.95
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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.