Finding the Fourth Proportional to 145,796.55, 201,174.88 and 81,251.69
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Solution
The fourth proportional to 145,796.55, 201,174.88 and 81,251.69 is: 112,113.75
Step by Step Solution
- Step 1: Write the proportion equation
145,796.55 : 201,174.88 = 81,251.69 : x - Step 2: Convert to fraction form
145,796.55/201,174.88 = 81,251.69/x - Step 3: Cross multiply
145,796.55x = 201,174.88 × 81,251.69 - Step 4: Simplify right side
145,796.55x = 16,345,797,776.54 - Step 5: Solve for x
x = 16,345,797,776.54/145,796.55 - Step 6: Final answer
x = 112,113.75
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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.