Finding the Fourth Proportional to 135,217.30, 202,437.15 and 82,729.30
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Solution
The fourth proportional to 135,217.30, 202,437.15 and 82,729.30 is: 123,856.07
Step by Step Solution
- Step 1: Write the proportion equation
135,217.30 : 202,437.15 = 82,729.30 : x - Step 2: Convert to fraction form
135,217.30/202,437.15 = 82,729.30/x - Step 3: Cross multiply
135,217.30x = 202,437.15 × 82,729.30 - Step 4: Simplify right side
135,217.30x = 16,747,483,713.50 - Step 5: Solve for x
x = 16,747,483,713.50/135,217.30 - Step 6: Final answer
x = 123,856.07
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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.