Finding the Fourth Proportional to 138,950.29, 208,704.41 and 82,899.75
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Solution
The fourth proportional to 138,950.29, 208,704.41 and 82,899.75 is: 124,516.07
Step by Step Solution
- Step 1: Write the proportion equation
138,950.29 : 208,704.41 = 82,899.75 : x - Step 2: Convert to fraction form
138,950.29/208,704.41 = 82,899.75/x - Step 3: Cross multiply
138,950.29x = 208,704.41 × 82,899.75 - Step 4: Simplify right side
138,950.29x = 17,301,543,412.90 - Step 5: Solve for x
x = 17,301,543,412.90/138,950.29 - Step 6: Final answer
x = 124,516.07
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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.