Finding the Fourth Proportional to 142,738.54, 214,024.82 and 53,998.99
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Solution
The fourth proportional to 142,738.54, 214,024.82 and 53,998.99 is: 80,967.09
Step by Step Solution
- Step 1: Write the proportion equation
142,738.54 : 214,024.82 = 53,998.99 : x - Step 2: Convert to fraction form
142,738.54/214,024.82 = 53,998.99/x - Step 3: Cross multiply
142,738.54x = 214,024.82 × 53,998.99 - Step 4: Simplify right side
142,738.54x = 11,557,123,309.87 - Step 5: Solve for x
x = 11,557,123,309.87/142,738.54 - Step 6: Final answer
x = 80,967.09
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.