Finding the Fourth Proportional to 123,447.68, 170,357.84 and 66,859.06
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Solution
The fourth proportional to 123,447.68, 170,357.84 and 66,859.06 is: 92,265.53
Step by Step Solution
- Step 1: Write the proportion equation
123,447.68 : 170,357.84 = 66,859.06 : x - Step 2: Convert to fraction form
123,447.68/170,357.84 = 66,859.06/x - Step 3: Cross multiply
123,447.68x = 170,357.84 × 66,859.06 - Step 4: Simplify right side
123,447.68x = 11,389,965,046.03 - Step 5: Solve for x
x = 11,389,965,046.03/123,447.68 - Step 6: Final answer
x = 92,265.53
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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.