Finding the Fourth Proportional to 138,125.26, 207,127.53 and 69,694.75
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Solution
The fourth proportional to 138,125.26, 207,127.53 and 69,694.75 is: 104,511.67
Step by Step Solution
- Step 1: Write the proportion equation
138,125.26 : 207,127.53 = 69,694.75 : x - Step 2: Convert to fraction form
138,125.26/207,127.53 = 69,694.75/x - Step 3: Cross multiply
138,125.26x = 207,127.53 × 69,694.75 - Step 4: Simplify right side
138,125.26x = 14,435,700,903.65 - Step 5: Solve for x
x = 14,435,700,903.65/138,125.26 - Step 6: Final answer
x = 104,511.67
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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.