Finding the Fourth Proportional to 122.60, 169.14 and 94.94
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Solution
The fourth proportional to 122.60, 169.14 and 94.94 is: 130.98
Step by Step Solution
- Step 1: Write the proportion equation
122.60 : 169.14 = 94.94 : x - Step 2: Convert to fraction form
122.60/169.14 = 94.94/x - Step 3: Cross multiply
122.60x = 169.14 × 94.94 - Step 4: Simplify right side
122.60x = 16,058.15 - Step 5: Solve for x
x = 16,058.15/122.60 - Step 6: Final answer
x = 130.98
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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.