Finding the Fourth Proportional to 122,917.29, 169,629.05 and 69,204.26
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Solution
The fourth proportional to 122,917.29, 169,629.05 and 69,204.26 is: 95,503.67
Step by Step Solution
- Step 1: Write the proportion equation
122,917.29 : 169,629.05 = 69,204.26 : x - Step 2: Convert to fraction form
122,917.29/169,629.05 = 69,204.26/x - Step 3: Cross multiply
122,917.29x = 169,629.05 × 69,204.26 - Step 4: Simplify right side
122,917.29x = 11,739,052,879.75 - Step 5: Solve for x
x = 11,739,052,879.75/122,917.29 - Step 6: Final answer
x = 95,503.67
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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.