Finding the Fourth Proportional to 136,042.08, 187,728.98 and 75,608.80
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Solution
The fourth proportional to 136,042.08, 187,728.98 and 75,608.80 is: 104,335.09
Step by Step Solution
- Step 1: Write the proportion equation
136,042.08 : 187,728.98 = 75,608.80 : x - Step 2: Convert to fraction form
136,042.08/187,728.98 = 75,608.80/x - Step 3: Cross multiply
136,042.08x = 187,728.98 × 75,608.80 - Step 4: Simplify right side
136,042.08x = 14,193,962,903.02 - Step 5: Solve for x
x = 14,193,962,903.02/136,042.08 - Step 6: Final answer
x = 104,335.09
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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.