Finding the Fourth Proportional to 117.75, 177.53 and 93.99
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Solution
The fourth proportional to 117.75, 177.53 and 93.99 is: 141.71
Step by Step Solution
- Step 1: Write the proportion equation
117.75 : 177.53 = 93.99 : x - Step 2: Convert to fraction form
117.75/177.53 = 93.99/x - Step 3: Cross multiply
117.75x = 177.53 × 93.99 - Step 4: Simplify right side
117.75x = 16,686.28 - Step 5: Solve for x
x = 16,686.28/117.75 - Step 6: Final answer
x = 141.71
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.