Finding the Fourth Proportional to 135.99, 204.05 and 84.65
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Solution
The fourth proportional to 135.99, 204.05 and 84.65 is: 127.02
Step by Step Solution
- Step 1: Write the proportion equation
135.99 : 204.05 = 84.65 : x - Step 2: Convert to fraction form
135.99/204.05 = 84.65/x - Step 3: Cross multiply
135.99x = 204.05 × 84.65 - Step 4: Simplify right side
135.99x = 17,272.92 - Step 5: Solve for x
x = 17,272.92/135.99 - Step 6: Final answer
x = 127.02
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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.