Finding the Fourth Proportional to 108,163.08, 149,311.08 and 65,735.28
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Solution
The fourth proportional to 108,163.08, 149,311.08 and 65,735.28 is: 90,742.66
Step by Step Solution
- Step 1: Write the proportion equation
108,163.08 : 149,311.08 = 65,735.28 : x - Step 2: Convert to fraction form
108,163.08/149,311.08 = 65,735.28/x - Step 3: Cross multiply
108,163.08x = 149,311.08 × 65,735.28 - Step 4: Simplify right side
108,163.08x = 9,815,005,650.90 - Step 5: Solve for x
x = 9,815,005,650.90/108,163.08 - Step 6: Final answer
x = 90,742.66
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1.5x scale
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.