Finding the Fourth Proportional to 119.69, 179.54 and 58.00
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Solution
The fourth proportional to 119.69, 179.54 and 58.00 is: 86.99
Step by Step Solution
- Step 1: Write the proportion equation
119.69 : 179.54 = 58.00 : x - Step 2: Convert to fraction form
119.69/179.54 = 58.00/x - Step 3: Cross multiply
119.69x = 179.54 × 58.00 - Step 4: Simplify right side
119.69x = 10,412.13 - Step 5: Solve for x
x = 10,412.13/119.69 - Step 6: Final answer
x = 86.99
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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.