Finding the Fourth Proportional to 134,623.80, 201,935.70 and 82,135.80
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Solution
The fourth proportional to 134,623.80, 201,935.70 and 82,135.80 is: 123,203.70
Step by Step Solution
- Step 1: Write the proportion equation
134,623.80 : 201,935.70 = 82,135.80 : x - Step 2: Convert to fraction form
134,623.80/201,935.70 = 82,135.80/x - Step 3: Cross multiply
134,623.80x = 201,935.70 × 82,135.80 - Step 4: Simplify right side
134,623.80x = 16,586,150,268.06 - Step 5: Solve for x
x = 16,586,150,268.06/134,623.80 - Step 6: Final answer
x = 123,203.70
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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.