Finding the Fourth Proportional to 122,885.86, 169,634.79 and 82,622.92
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Solution
The fourth proportional to 122,885.86, 169,634.79 and 82,622.92 is: 114,054.80
Step by Step Solution
- Step 1: Write the proportion equation
122,885.86 : 169,634.79 = 82,622.92 : x - Step 2: Convert to fraction form
122,885.86/169,634.79 = 82,622.92/x - Step 3: Cross multiply
122,885.86x = 169,634.79 × 82,622.92 - Step 4: Simplify right side
122,885.86x = 14,015,721,683.39 - Step 5: Solve for x
x = 14,015,721,683.39/122,885.86 - Step 6: Final answer
x = 114,054.80
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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.