Finding the Fourth Proportional to 149,785.41, 206,705.26 and 85,251.48
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Solution
The fourth proportional to 149,785.41, 206,705.26 and 85,251.48 is: 117,647.84
Step by Step Solution
- Step 1: Write the proportion equation
149,785.41 : 206,705.26 = 85,251.48 : x - Step 2: Convert to fraction form
149,785.41/206,705.26 = 85,251.48/x - Step 3: Cross multiply
149,785.41x = 206,705.26 × 85,251.48 - Step 4: Simplify right side
149,785.41x = 17,621,929,338.78 - Step 5: Solve for x
x = 17,621,929,338.78/149,785.41 - Step 6: Final answer
x = 117,647.84
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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.