Finding the Fourth Proportional to 128,273.10, 192,640.05 and 124,125.90
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Solution
The fourth proportional to 128,273.10, 192,640.05 and 124,125.90 is: 186,411.80
Step by Step Solution
- Step 1: Write the proportion equation
128,273.10 : 192,640.05 = 124,125.90 : x - Step 2: Convert to fraction form
128,273.10/192,640.05 = 124,125.90/x - Step 3: Cross multiply
128,273.10x = 192,640.05 × 124,125.90 - Step 4: Simplify right side
128,273.10x = 23,911,619,582.30 - Step 5: Solve for x
x = 23,911,619,582.30/128,273.10 - Step 6: Final answer
x = 186,411.80
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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.