Finding the Fourth Proportional to 134,165.20, 201,247.80 and 71,957.20
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Solution
The fourth proportional to 134,165.20, 201,247.80 and 71,957.20 is: 107,935.80
Step by Step Solution
- Step 1: Write the proportion equation
134,165.20 : 201,247.80 = 71,957.20 : x - Step 2: Convert to fraction form
134,165.20/201,247.80 = 71,957.20/x - Step 3: Cross multiply
134,165.20x = 201,247.80 × 71,957.20 - Step 4: Simplify right side
134,165.20x = 14,481,228,194.16 - Step 5: Solve for x
x = 14,481,228,194.16/134,165.20 - Step 6: Final answer
x = 107,935.80
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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.