Finding the Fourth Proportional to 122,796.24, 169,449.12 and 69,070.56
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Solution
The fourth proportional to 122,796.24, 169,449.12 and 69,070.56 is: 95,311.92
Step by Step Solution
- Step 1: Write the proportion equation
122,796.24 : 169,449.12 = 69,070.56 : x - Step 2: Convert to fraction form
122,796.24/169,449.12 = 69,070.56/x - Step 3: Cross multiply
122,796.24x = 169,449.12 × 69,070.56 - Step 4: Simplify right side
122,796.24x = 11,703,945,609.91 - Step 5: Solve for x
x = 11,703,945,609.91/122,796.24 - Step 6: Final answer
x = 95,311.92
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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.