Finding the Fourth Proportional to 108.11, 149.17 and 58.98
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Solution
The fourth proportional to 108.11, 149.17 and 58.98 is: 81.39
Step by Step Solution
- Step 1: Write the proportion equation
108.11 : 149.17 = 58.98 : x - Step 2: Convert to fraction form
108.11/149.17 = 58.98/x - Step 3: Cross multiply
108.11x = 149.17 × 58.98 - Step 4: Simplify right side
108.11x = 8,798.23 - Step 5: Solve for x
x = 8,798.23/108.11 - Step 6: Final answer
x = 81.39
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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.