Finding the Fourth Proportional to 104,880.96, 144,731.07 and 57,134.70
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Solution
The fourth proportional to 104,880.96, 144,731.07 and 57,134.70 is: 78,843.35
Step by Step Solution
- Step 1: Write the proportion equation
104,880.96 : 144,731.07 = 57,134.70 : x - Step 2: Convert to fraction form
104,880.96/144,731.07 = 57,134.70/x - Step 3: Cross multiply
104,880.96x = 144,731.07 × 57,134.70 - Step 4: Simplify right side
104,880.96x = 8,269,166,265.13 - Step 5: Solve for x
x = 8,269,166,265.13/104,880.96 - Step 6: Final answer
x = 78,843.35
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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.