Finding the Fourth Proportional to 135,974.16, 203,940.12 and 69,463.44
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Solution
The fourth proportional to 135,974.16, 203,940.12 and 69,463.44 is: 104,184.37
Step by Step Solution
- Step 1: Write the proportion equation
135,974.16 : 203,940.12 = 69,463.44 : x - Step 2: Convert to fraction form
135,974.16/203,940.12 = 69,463.44/x - Step 3: Cross multiply
135,974.16x = 203,940.12 × 69,463.44 - Step 4: Simplify right side
135,974.16x = 14,166,382,289.21 - Step 5: Solve for x
x = 14,166,382,289.21/135,974.16 - Step 6: Final answer
x = 104,184.37
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1.5x scale
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.