Finding the Fourth Proportional to 120,235.68, 165,910.82 and 69,265.08
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Solution
The fourth proportional to 120,235.68, 165,910.82 and 69,265.08 is: 95,577.50
Step by Step Solution
- Step 1: Write the proportion equation
120,235.68 : 165,910.82 = 69,265.08 : x - Step 2: Convert to fraction form
120,235.68/165,910.82 = 69,265.08/x - Step 3: Cross multiply
120,235.68x = 165,910.82 × 69,265.08 - Step 4: Simplify right side
120,235.68x = 11,491,825,873.84 - Step 5: Solve for x
x = 11,491,825,873.84/120,235.68 - Step 6: Final answer
x = 95,577.50
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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.