Finding the Fourth Proportional to 136,170.90, 204,037.65 and 128,297.70
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Solution
The fourth proportional to 136,170.90, 204,037.65 and 128,297.70 is: 192,240.49
Step by Step Solution
- Step 1: Write the proportion equation
136,170.90 : 204,037.65 = 128,297.70 : x - Step 2: Convert to fraction form
136,170.90/204,037.65 = 128,297.70/x - Step 3: Cross multiply
136,170.90x = 204,037.65 × 128,297.70 - Step 4: Simplify right side
136,170.90x = 26,177,561,208.41 - Step 5: Solve for x
x = 26,177,561,208.41/136,170.90 - Step 6: Final answer
x = 192,240.49
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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.