Finding the Fourth Proportional to 146,191.70, 201,742.36 and 81,661.84
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Solution
The fourth proportional to 146,191.70, 201,742.36 and 81,661.84 is: 112,692.12
Step by Step Solution
- Step 1: Write the proportion equation
146,191.70 : 201,742.36 = 81,661.84 : x - Step 2: Convert to fraction form
146,191.70/201,742.36 = 81,661.84/x - Step 3: Cross multiply
146,191.70x = 201,742.36 × 81,661.84 - Step 4: Simplify right side
146,191.70x = 16,474,652,323.54 - Step 5: Solve for x
x = 16,474,652,323.54/146,191.70 - Step 6: Final answer
x = 112,692.12
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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.