Finding the Fourth Proportional to 93.99, 128.53 and 93.99
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Solution
The fourth proportional to 93.99, 128.53 and 93.99 is: 128.53
Step by Step Solution
- Step 1: Write the proportion equation
93.99 : 128.53 = 93.99 : x - Step 2: Convert to fraction form
93.99/128.53 = 93.99/x - Step 3: Cross multiply
93.99x = 128.53 × 93.99 - Step 4: Simplify right side
93.99x = 12,080.53 - Step 5: Solve for x
x = 12,080.53/93.99 - Step 6: Final answer
x = 128.53
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.