Finding the Fourth Proportional to 140,857.80, 194,297.39 and 115,053.84
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Solution
The fourth proportional to 140,857.80, 194,297.39 and 115,053.84 is: 158,703.75
Step by Step Solution
- Step 1: Write the proportion equation
140,857.80 : 194,297.39 = 115,053.84 : x - Step 2: Convert to fraction form
140,857.80/194,297.39 = 115,053.84/x - Step 3: Cross multiply
140,857.80x = 194,297.39 × 115,053.84 - Step 4: Simplify right side
140,857.80x = 22,354,659,849.99 - Step 5: Solve for x
x = 22,354,659,849.99/140,857.80 - Step 6: Final answer
x = 158,703.75
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.