Finding the Fourth Proportional to 126.16, 189.23 and 44.99
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Solution
The fourth proportional to 126.16, 189.23 and 44.99 is: 67.48
Step by Step Solution
- Step 1: Write the proportion equation
126.16 : 189.23 = 44.99 : x - Step 2: Convert to fraction form
126.16/189.23 = 44.99/x - Step 3: Cross multiply
126.16x = 189.23 × 44.99 - Step 4: Simplify right side
126.16x = 8,513.23 - Step 5: Solve for x
x = 8,513.23/126.16 - Step 6: Final answer
x = 67.48
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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.