Finding the Fourth Proportional to 120,655.26, 166,512.12 and 69,670.14
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Solution
The fourth proportional to 120,655.26, 166,512.12 and 69,670.14 is: 96,149.33
Step by Step Solution
- Step 1: Write the proportion equation
120,655.26 : 166,512.12 = 69,670.14 : x - Step 2: Convert to fraction form
120,655.26/166,512.12 = 69,670.14/x - Step 3: Cross multiply
120,655.26x = 166,512.12 × 69,670.14 - Step 4: Simplify right side
120,655.26x = 11,600,922,712.10 - Step 5: Solve for x
x = 11,600,922,712.10/120,655.26 - Step 6: Final answer
x = 96,149.33
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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.