Finding the Fourth Proportional to 120,659.88, 166,524.99 and 69,684.99
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Solution
The fourth proportional to 120,659.88, 166,524.99 and 69,684.99 is: 96,173.58
Step by Step Solution
- Step 1: Write the proportion equation
120,659.88 : 166,524.99 = 69,684.99 : x - Step 2: Convert to fraction form
120,659.88/166,524.99 = 69,684.99/x - Step 3: Cross multiply
120,659.88x = 166,524.99 × 69,684.99 - Step 4: Simplify right side
120,659.88x = 11,604,292,262.90 - Step 5: Solve for x
x = 11,604,292,262.90/120,659.88 - Step 6: Final answer
x = 96,173.58
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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.