Finding the Fourth Proportional to 139,497.19, 192,507.24 and 75,834.84
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Solution
The fourth proportional to 139,497.19, 192,507.24 and 75,834.84 is: 104,652.69
Step by Step Solution
- Step 1: Write the proportion equation
139,497.19 : 192,507.24 = 75,834.84 : x - Step 2: Convert to fraction form
139,497.19/192,507.24 = 75,834.84/x - Step 3: Cross multiply
139,497.19x = 192,507.24 × 75,834.84 - Step 4: Simplify right side
139,497.19x = 14,598,755,744.24 - Step 5: Solve for x
x = 14,598,755,744.24/139,497.19 - Step 6: Final answer
x = 104,652.69
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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.