Finding the Fourth Proportional to 70.73, 106.11 and 25.08
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Solution
The fourth proportional to 70.73, 106.11 and 25.08 is: 37.63
Step by Step Solution
- Step 1: Write the proportion equation
70.73 : 106.11 = 25.08 : x - Step 2: Convert to fraction form
70.73/106.11 = 25.08/x - Step 3: Cross multiply
70.73x = 106.11 × 25.08 - Step 4: Simplify right side
70.73x = 2,661.24 - Step 5: Solve for x
x = 2,661.24/70.73 - Step 6: Final answer
x = 37.63
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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.