Finding the Fourth Proportional to 139,180.19, 192,070.90 and 75,517.99
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Solution
The fourth proportional to 139,180.19, 192,070.90 and 75,517.99 is: 104,216.03
Step by Step Solution
- Step 1: Write the proportion equation
139,180.19 : 192,070.90 = 75,517.99 : x - Step 2: Convert to fraction form
139,180.19/192,070.90 = 75,517.99/x - Step 3: Cross multiply
139,180.19x = 192,070.90 × 75,517.99 - Step 4: Simplify right side
139,180.19x = 14,504,807,494.92 - Step 5: Solve for x
x = 14,504,807,494.92/139,180.19 - Step 6: Final answer
x = 104,216.03
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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.