Finding the Fourth Proportional to 134.99, 202.55 and 91.65
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Solution
The fourth proportional to 134.99, 202.55 and 91.65 is: 137.52
Step by Step Solution
- Step 1: Write the proportion equation
134.99 : 202.55 = 91.65 : x - Step 2: Convert to fraction form
134.99/202.55 = 91.65/x - Step 3: Cross multiply
134.99x = 202.55 × 91.65 - Step 4: Simplify right side
134.99x = 18,563.25 - Step 5: Solve for x
x = 18,563.25/134.99 - Step 6: Final answer
x = 137.52
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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.