Finding the Fourth Proportional to 143,485.97, 214,932.49 and 84,142.94
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Solution
The fourth proportional to 143,485.97, 214,932.49 and 84,142.94 is: 126,040.55
Step by Step Solution
- Step 1: Write the proportion equation
143,485.97 : 214,932.49 = 84,142.94 : x - Step 2: Convert to fraction form
143,485.97/214,932.49 = 84,142.94/x - Step 3: Cross multiply
143,485.97x = 214,932.49 × 84,142.94 - Step 4: Simplify right side
143,485.97x = 18,085,050,325.10 - Step 5: Solve for x
x = 18,085,050,325.10/143,485.97 - Step 6: Final answer
x = 126,040.55
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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.