Finding the Fourth Proportional to 192,785.76, 289,106.82 and 66,390.84
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Solution
The fourth proportional to 192,785.76, 289,106.82 and 66,390.84 is: 99,561.53
Step by Step Solution
- Step 1: Write the proportion equation
192,785.76 : 289,106.82 = 66,390.84 : x - Step 2: Convert to fraction form
192,785.76/289,106.82 = 66,390.84/x - Step 3: Cross multiply
192,785.76x = 289,106.82 × 66,390.84 - Step 4: Simplify right side
192,785.76x = 19,194,044,629.53 - Step 5: Solve for x
x = 19,194,044,629.53/192,785.76 - Step 6: Final answer
x = 99,561.53
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1.5x scale
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.