Finding the Fourth Proportional to 139,659.29, 192,734.17 and 79,232.48
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Solution
The fourth proportional to 139,659.29, 192,734.17 and 79,232.48 is: 109,343.28
Step by Step Solution
- Step 1: Write the proportion equation
139,659.29 : 192,734.17 = 79,232.48 : x - Step 2: Convert to fraction form
139,659.29/192,734.17 = 79,232.48/x - Step 3: Cross multiply
139,659.29x = 192,734.17 × 79,232.48 - Step 4: Simplify right side
139,659.29x = 15,270,804,910.01 - Step 5: Solve for x
x = 15,270,804,910.01/139,659.29 - Step 6: Final answer
x = 109,343.28
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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.