Finding the Fourth Proportional to 136,969.46, 204,451.16 and 120,791.09
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Solution
The fourth proportional to 136,969.46, 204,451.16 and 120,791.09 is: 180,302.08
Step by Step Solution
- Step 1: Write the proportion equation
136,969.46 : 204,451.16 = 120,791.09 : x - Step 2: Convert to fraction form
136,969.46/204,451.16 = 120,791.09/x - Step 3: Cross multiply
136,969.46x = 204,451.16 × 120,791.09 - Step 4: Simplify right side
136,969.46x = 24,695,877,655.06 - Step 5: Solve for x
x = 24,695,877,655.06/136,969.46 - Step 6: Final answer
x = 180,302.08
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.