Finding the Fourth Proportional to 123,321.68, 170,184.36 and 66,733.05
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Solution
The fourth proportional to 123,321.68, 170,184.36 and 66,733.05 is: 92,091.85
Step by Step Solution
- Step 1: Write the proportion equation
123,321.68 : 170,184.36 = 66,733.05 : x - Step 2: Convert to fraction form
123,321.68/170,184.36 = 66,733.05/x - Step 3: Cross multiply
123,321.68x = 170,184.36 × 66,733.05 - Step 4: Simplify right side
123,321.68x = 11,356,921,405.10 - Step 5: Solve for x
x = 11,356,921,405.10/123,321.68 - Step 6: Final answer
x = 92,091.85
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1.5x scale
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.