Finding the Fourth Proportional to 137.99, 207.07 and 60.96
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Solution
The fourth proportional to 137.99, 207.07 and 60.96 is: 91.48
Step by Step Solution
- Step 1: Write the proportion equation
137.99 : 207.07 = 60.96 : x - Step 2: Convert to fraction form
137.99/207.07 = 60.96/x - Step 3: Cross multiply
137.99x = 207.07 × 60.96 - Step 4: Simplify right side
137.99x = 12,622.99 - Step 5: Solve for x
x = 12,622.99/137.99 - Step 6: Final answer
x = 91.48
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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.