Finding the Fourth Proportional to 145,125.26, 200,261.88 and 81,450.75
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Solution
The fourth proportional to 145,125.26, 200,261.88 and 81,450.75 is: 112,395.88
Step by Step Solution
- Step 1: Write the proportion equation
145,125.26 : 200,261.88 = 81,450.75 : x - Step 2: Convert to fraction form
145,125.26/200,261.88 = 81,450.75/x - Step 3: Cross multiply
145,125.26x = 200,261.88 × 81,450.75 - Step 4: Simplify right side
145,125.26x = 16,311,480,322.41 - Step 5: Solve for x
x = 16,311,480,322.41/145,125.26 - Step 6: Final answer
x = 112,395.88
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.