Finding the Fourth Proportional to 120,302.24, 166,021.00 and 69,310.96
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Solution
The fourth proportional to 120,302.24, 166,021.00 and 69,310.96 is: 95,651.38
Step by Step Solution
- Step 1: Write the proportion equation
120,302.24 : 166,021.00 = 69,310.96 : x - Step 2: Convert to fraction form
120,302.24/166,021.00 = 69,310.96/x - Step 3: Cross multiply
120,302.24x = 166,021.00 × 69,310.96 - Step 4: Simplify right side
120,302.24x = 11,507,074,301.83 - Step 5: Solve for x
x = 11,507,074,301.83/120,302.24 - Step 6: Final answer
x = 95,651.38
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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.