Finding the Fourth Proportional to 149,137.24, 205,814.22 and 85,487.08
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Solution
The fourth proportional to 149,137.24, 205,814.22 and 85,487.08 is: 117,974.94
Step by Step Solution
- Step 1: Write the proportion equation
149,137.24 : 205,814.22 = 85,487.08 : x - Step 2: Convert to fraction form
149,137.24/205,814.22 = 85,487.08/x - Step 3: Cross multiply
149,137.24x = 205,814.22 × 85,487.08 - Step 4: Simplify right side
149,137.24x = 17,594,456,690.28 - Step 5: Solve for x
x = 17,594,456,690.28/149,137.24 - Step 6: Final answer
x = 117,974.94
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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.