Finding the Fourth Proportional to 136,711.80, 205,067.70 and 122,933.70
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Solution
The fourth proportional to 136,711.80, 205,067.70 and 122,933.70 is: 184,400.55
Step by Step Solution
- Step 1: Write the proportion equation
136,711.80 : 205,067.70 = 122,933.70 : x - Step 2: Convert to fraction form
136,711.80/205,067.70 = 122,933.70/x - Step 3: Cross multiply
136,711.80x = 205,067.70 × 122,933.70 - Step 4: Simplify right side
136,711.80x = 25,209,731,111.49 - Step 5: Solve for x
x = 25,209,731,111.49/136,711.80 - Step 6: Final answer
x = 184,400.55
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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.