Finding the Fourth Proportional to 139,575.48, 192,657.99 and 79,186.26
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Solution
The fourth proportional to 139,575.48, 192,657.99 and 79,186.26 is: 109,301.90
Step by Step Solution
- Step 1: Write the proportion equation
139,575.48 : 192,657.99 = 79,186.26 : x - Step 2: Convert to fraction form
139,575.48/192,657.99 = 79,186.26/x - Step 3: Cross multiply
139,575.48x = 192,657.99 × 79,186.26 - Step 4: Simplify right side
139,575.48x = 15,255,865,622.93 - Step 5: Solve for x
x = 15,255,865,622.93/139,575.48 - Step 6: Final answer
x = 109,301.90
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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.