Finding the Fourth Proportional to 139,787.25, 192,924.63 and 83,198.63
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Solution
The fourth proportional to 139,787.25, 192,924.63 and 83,198.63 is: 114,824.95
Step by Step Solution
- Step 1: Write the proportion equation
139,787.25 : 192,924.63 = 83,198.63 : x - Step 2: Convert to fraction form
139,787.25/192,924.63 = 83,198.63/x - Step 3: Cross multiply
139,787.25x = 192,924.63 × 83,198.63 - Step 4: Simplify right side
139,787.25x = 16,051,063,944.63 - Step 5: Solve for x
x = 16,051,063,944.63/139,787.25 - Step 6: Final answer
x = 114,824.95
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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.