Finding the Fourth Proportional to 139,236.24, 192,146.22 and 75,574.07
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Solution
The fourth proportional to 139,236.24, 192,146.22 and 75,574.07 is: 104,292.32
Step by Step Solution
- Step 1: Write the proportion equation
139,236.24 : 192,146.22 = 75,574.07 : x - Step 2: Convert to fraction form
139,236.24/192,146.22 = 75,574.07/x - Step 3: Cross multiply
139,236.24x = 192,146.22 × 75,574.07 - Step 4: Simplify right side
139,236.24x = 14,521,270,919.78 - Step 5: Solve for x
x = 14,521,270,919.78/139,236.24 - Step 6: Final answer
x = 104,292.32
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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.