Finding the Fourth Proportional to 106.41, 159.46 and 60.72
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Solution
The fourth proportional to 106.41, 159.46 and 60.72 is: 90.99
Step by Step Solution
- Step 1: Write the proportion equation
106.41 : 159.46 = 60.72 : x - Step 2: Convert to fraction form
106.41/159.46 = 60.72/x - Step 3: Cross multiply
106.41x = 159.46 × 60.72 - Step 4: Simplify right side
106.41x = 9,682.41 - Step 5: Solve for x
x = 9,682.41/106.41 - Step 6: Final answer
x = 90.99
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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.