Finding the Fourth Proportional to 139,440.14, 192,427.35 and 75,777.92
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Solution
The fourth proportional to 139,440.14, 192,427.35 and 75,777.92 is: 104,573.50
Step by Step Solution
- Step 1: Write the proportion equation
139,440.14 : 192,427.35 = 75,777.92 : x - Step 2: Convert to fraction form
139,440.14/192,427.35 = 75,777.92/x - Step 3: Cross multiply
139,440.14x = 192,427.35 × 75,777.92 - Step 4: Simplify right side
139,440.14x = 14,581,743,371.98 - Step 5: Solve for x
x = 14,581,743,371.98/139,440.14 - Step 6: Final answer
x = 104,573.50
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1.5x scale
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.