Finding the Fourth Proportional to 132,893.79, 199,340.69 and 91,214.43
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Solution
The fourth proportional to 132,893.79, 199,340.69 and 91,214.43 is: 136,821.65
Step by Step Solution
- Step 1: Write the proportion equation
132,893.79 : 199,340.69 = 91,214.43 : x - Step 2: Convert to fraction form
132,893.79/199,340.69 = 91,214.43/x - Step 3: Cross multiply
132,893.79x = 199,340.69 × 91,214.43 - Step 4: Simplify right side
132,893.79x = 18,182,746,958.08 - Step 5: Solve for x
x = 18,182,746,958.08/132,893.79 - Step 6: Final answer
x = 136,821.65
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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.