Finding the Fourth Proportional to 107.87, 149.14 and 102.94
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Solution
The fourth proportional to 107.87, 149.14 and 102.94 is: 142.33
Step by Step Solution
- Step 1: Write the proportion equation
107.87 : 149.14 = 102.94 : x - Step 2: Convert to fraction form
107.87/149.14 = 102.94/x - Step 3: Cross multiply
107.87x = 149.14 × 102.94 - Step 4: Simplify right side
107.87x = 15,352.23 - Step 5: Solve for x
x = 15,352.23/107.87 - Step 6: Final answer
x = 142.33
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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.