Finding the Fourth Proportional to 134.98, 202.34 and 91.65
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Solution
The fourth proportional to 134.98, 202.34 and 91.65 is: 137.39
Step by Step Solution
- Step 1: Write the proportion equation
134.98 : 202.34 = 91.65 : x - Step 2: Convert to fraction form
134.98/202.34 = 91.65/x - Step 3: Cross multiply
134.98x = 202.34 × 91.65 - Step 4: Simplify right side
134.98x = 18,544.76 - Step 5: Solve for x
x = 18,544.76/134.98 - Step 6: Final answer
x = 137.39
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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.