Finding the Fourth Proportional to 82.95, 124.08 and 69.99
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Solution
The fourth proportional to 82.95, 124.08 and 69.99 is: 104.69
Step by Step Solution
- Step 1: Write the proportion equation
82.95 : 124.08 = 69.99 : x - Step 2: Convert to fraction form
82.95/124.08 = 69.99/x - Step 3: Cross multiply
82.95x = 124.08 × 69.99 - Step 4: Simplify right side
82.95x = 8,684.36 - Step 5: Solve for x
x = 8,684.36/82.95 - Step 6: Final answer
x = 104.69
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.