Finding the Fourth Proportional to 80,137.49, 120,168.50 and 46,867.68
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Solution
The fourth proportional to 80,137.49, 120,168.50 and 46,867.68 is: 70,279.45
Step by Step Solution
- Step 1: Write the proportion equation
80,137.49 : 120,168.50 = 46,867.68 : x - Step 2: Convert to fraction form
80,137.49/120,168.50 = 46,867.68/x - Step 3: Cross multiply
80,137.49x = 120,168.50 × 46,867.68 - Step 4: Simplify right side
80,137.49x = 5,632,018,569.74 - Step 5: Solve for x
x = 5,632,018,569.74/80,137.49 - Step 6: Final answer
x = 70,279.45
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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.