Finding the Fourth Proportional to 132,619.75, 198,931.68 and 73,829.09
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Solution
The fourth proportional to 132,619.75, 198,931.68 and 73,829.09 is: 110,744.78
Step by Step Solution
- Step 1: Write the proportion equation
132,619.75 : 198,931.68 = 73,829.09 : x - Step 2: Convert to fraction form
132,619.75/198,931.68 = 73,829.09/x - Step 3: Cross multiply
132,619.75x = 198,931.68 × 73,829.09 - Step 4: Simplify right side
132,619.75x = 14,686,944,906.57 - Step 5: Solve for x
x = 14,686,944,906.57/132,619.75 - Step 6: Final answer
x = 110,744.78
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1.5x scale
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.