Finding the Fourth Proportional to 126,767.82, 189,878.37 and 119,315.19
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Solution
The fourth proportional to 126,767.82, 189,878.37 and 119,315.19 is: 178,715.50
Step by Step Solution
- Step 1: Write the proportion equation
126,767.82 : 189,878.37 = 119,315.19 : x - Step 2: Convert to fraction form
126,767.82/189,878.37 = 119,315.19/x - Step 3: Cross multiply
126,767.82x = 189,878.37 × 119,315.19 - Step 4: Simplify right side
126,767.82x = 22,655,373,793.44 - Step 5: Solve for x
x = 22,655,373,793.44/126,767.82 - Step 6: Final answer
x = 178,715.50
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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.