Finding the Fourth Proportional to 104,810.28, 144,640.14 and 57,064.44
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Solution
The fourth proportional to 104,810.28, 144,640.14 and 57,064.44 is: 78,749.99
Step by Step Solution
- Step 1: Write the proportion equation
104,810.28 : 144,640.14 = 57,064.44 : x - Step 2: Convert to fraction form
104,810.28/144,640.14 = 57,064.44/x - Step 3: Cross multiply
104,810.28x = 144,640.14 × 57,064.44 - Step 4: Simplify right side
104,810.28x = 8,253,808,590.62 - Step 5: Solve for x
x = 8,253,808,590.62/104,810.28 - Step 6: Final answer
x = 78,749.99
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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.