Finding the Fourth Proportional to 139,757.26, 192,865.47 and 76,095.44
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Solution
The fourth proportional to 139,757.26, 192,865.47 and 76,095.44 is: 105,011.95
Step by Step Solution
- Step 1: Write the proportion equation
139,757.26 : 192,865.47 = 76,095.44 : x - Step 2: Convert to fraction form
139,757.26/192,865.47 = 76,095.44/x - Step 3: Cross multiply
139,757.26x = 192,865.47 × 76,095.44 - Step 4: Simplify right side
139,757.26x = 14,676,182,419.98 - Step 5: Solve for x
x = 14,676,182,419.98/139,757.26 - Step 6: Final answer
x = 105,011.95
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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.