Finding the Fourth Proportional to 139,239.24, 192,150.36 and 75,577.05
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Solution
The fourth proportional to 139,239.24, 192,150.36 and 75,577.05 is: 104,296.44
Step by Step Solution
- Step 1: Write the proportion equation
139,239.24 : 192,150.36 = 75,577.05 : x - Step 2: Convert to fraction form
139,239.24/192,150.36 = 75,577.05/x - Step 3: Cross multiply
139,239.24x = 192,150.36 × 75,577.05 - Step 4: Simplify right side
139,239.24x = 14,522,157,365.24 - Step 5: Solve for x
x = 14,522,157,365.24/139,239.24 - Step 6: Final answer
x = 104,296.44
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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.