Finding the Fourth Proportional to 104,884.66, 144,739.53 and 57,136.99
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Solution
The fourth proportional to 104,884.66, 144,739.53 and 57,136.99 is: 78,848.34
Step by Step Solution
- Step 1: Write the proportion equation
104,884.66 : 144,739.53 = 57,136.99 : x - Step 2: Convert to fraction form
104,884.66/144,739.53 = 57,136.99/x - Step 3: Cross multiply
104,884.66x = 144,739.53 × 57,136.99 - Step 4: Simplify right side
104,884.66x = 8,269,981,078.21 - Step 5: Solve for x
x = 8,269,981,078.21/104,884.66 - Step 6: Final answer
x = 78,848.34
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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.