Finding the Fourth Proportional to 139,183.84, 192,073.20 and 75,520.48
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Solution
The fourth proportional to 139,183.84, 192,073.20 and 75,520.48 is: 104,217.99
Step by Step Solution
- Step 1: Write the proportion equation
139,183.84 : 192,073.20 = 75,520.48 : x - Step 2: Convert to fraction form
139,183.84/192,073.20 = 75,520.48/x - Step 3: Cross multiply
139,183.84x = 192,073.20 × 75,520.48 - Step 4: Simplify right side
139,183.84x = 14,505,460,259.14 - Step 5: Solve for x
x = 14,505,460,259.14/139,183.84 - Step 6: Final answer
x = 104,217.99
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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.