Finding the Fourth Proportional to 126,369.97, 189,551.28 and 51,471.59
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Solution
The fourth proportional to 126,369.97, 189,551.28 and 51,471.59 is: 77,205.89
Step by Step Solution
- Step 1: Write the proportion equation
126,369.97 : 189,551.28 = 51,471.59 : x - Step 2: Convert to fraction form
126,369.97/189,551.28 = 51,471.59/x - Step 3: Cross multiply
126,369.97x = 189,551.28 × 51,471.59 - Step 4: Simplify right side
126,369.97x = 9,756,505,768.14 - Step 5: Solve for x
x = 9,756,505,768.14/126,369.97 - Step 6: Final answer
x = 77,205.89
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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.