Finding the Fourth Proportional to 139,759.63, 192,841.97 and 82,416.99
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Solution
The fourth proportional to 139,759.63, 192,841.97 and 82,416.99 is: 113,719.93
Step by Step Solution
- Step 1: Write the proportion equation
139,759.63 : 192,841.97 = 82,416.99 : x - Step 2: Convert to fraction form
139,759.63/192,841.97 = 82,416.99/x - Step 3: Cross multiply
139,759.63x = 192,841.97 × 82,416.99 - Step 4: Simplify right side
139,759.63x = 15,893,455,024.14 - Step 5: Solve for x
x = 15,893,455,024.14/139,759.63 - Step 6: Final answer
x = 113,719.93
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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.