Finding the Fourth Proportional to 135,286.97, 202,708.81 and 72,039.94
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Solution
The fourth proportional to 135,286.97, 202,708.81 and 72,039.94 is: 107,941.88
Step by Step Solution
- Step 1: Write the proportion equation
135,286.97 : 202,708.81 = 72,039.94 : x - Step 2: Convert to fraction form
135,286.97/202,708.81 = 72,039.94/x - Step 3: Cross multiply
135,286.97x = 202,708.81 × 72,039.94 - Step 4: Simplify right side
135,286.97x = 14,603,130,509.87 - Step 5: Solve for x
x = 14,603,130,509.87/135,286.97 - Step 6: Final answer
x = 107,941.88
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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.