Finding the Fourth Proportional to 135,193.71, 202,819.65 and 40,431.40
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Solution
The fourth proportional to 135,193.71, 202,819.65 and 40,431.40 is: 60,655.80
Step by Step Solution
- Step 1: Write the proportion equation
135,193.71 : 202,819.65 = 40,431.40 : x - Step 2: Convert to fraction form
135,193.71/202,819.65 = 40,431.40/x - Step 3: Cross multiply
135,193.71x = 202,819.65 × 40,431.40 - Step 4: Simplify right side
135,193.71x = 8,200,282,397.01 - Step 5: Solve for x
x = 8,200,282,397.01/135,193.71 - Step 6: Final answer
x = 60,655.80
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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.