Finding the Fourth Proportional to 111,138.48, 153,384.84 and 82,794.96
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Solution
The fourth proportional to 111,138.48, 153,384.84 and 82,794.96 is: 114,267.28
Step by Step Solution
- Step 1: Write the proportion equation
111,138.48 : 153,384.84 = 82,794.96 : x - Step 2: Convert to fraction form
111,138.48/153,384.84 = 82,794.96/x - Step 3: Cross multiply
111,138.48x = 153,384.84 × 82,794.96 - Step 4: Simplify right side
111,138.48x = 12,699,491,692.41 - Step 5: Solve for x
x = 12,699,491,692.41/111,138.48 - Step 6: Final answer
x = 114,267.28
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.