Finding the Fourth Proportional to 136,229.14, 187,760.01 and 128,355.94
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Solution
The fourth proportional to 136,229.14, 187,760.01 and 128,355.94 is: 176,908.65
Step by Step Solution
- Step 1: Write the proportion equation
136,229.14 : 187,760.01 = 128,355.94 : x - Step 2: Convert to fraction form
136,229.14/187,760.01 = 128,355.94/x - Step 3: Cross multiply
136,229.14x = 187,760.01 × 128,355.94 - Step 4: Simplify right side
136,229.14x = 24,100,112,577.96 - Step 5: Solve for x
x = 24,100,112,577.96/136,229.14 - Step 6: Final answer
x = 176,908.65
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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.