Finding the Fourth Proportional to 126,709.63, 189,906.58 and 110,877.12
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Solution
The fourth proportional to 126,709.63, 189,906.58 and 110,877.12 is: 166,177.53
Step by Step Solution
- Step 1: Write the proportion equation
126,709.63 : 189,906.58 = 110,877.12 : x - Step 2: Convert to fraction form
126,709.63/189,906.58 = 110,877.12/x - Step 3: Cross multiply
126,709.63x = 189,906.58 × 110,877.12 - Step 4: Simplify right side
126,709.63x = 21,056,294,174.36 - Step 5: Solve for x
x = 21,056,294,174.36/126,709.63 - Step 6: Final answer
x = 166,177.53
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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.