Finding the Fourth Proportional to 121,759.38, 182,343.83 and 84,214.08
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Solution
The fourth proportional to 121,759.38, 182,343.83 and 84,214.08 is: 126,116.92
Step by Step Solution
- Step 1: Write the proportion equation
121,759.38 : 182,343.83 = 84,214.08 : x - Step 2: Convert to fraction form
121,759.38/182,343.83 = 84,214.08/x - Step 3: Cross multiply
121,759.38x = 182,343.83 × 84,214.08 - Step 4: Simplify right side
121,759.38x = 15,355,917,466.06 - Step 5: Solve for x
x = 15,355,917,466.06/121,759.38 - Step 6: Final answer
x = 126,116.92
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.