Finding the Fourth Proportional to 125.99, 173.93 and 79.43
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Solution
The fourth proportional to 125.99, 173.93 and 79.43 is: 109.65
Step by Step Solution
- Step 1: Write the proportion equation
125.99 : 173.93 = 79.43 : x - Step 2: Convert to fraction form
125.99/173.93 = 79.43/x - Step 3: Cross multiply
125.99x = 173.93 × 79.43 - Step 4: Simplify right side
125.99x = 13,813.99 - Step 5: Solve for x
x = 13,813.99/125.99 - Step 6: Final answer
x = 109.65
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.