Finding the Fourth Proportional to 126,910.70, 190,366.05 and 115,246.70
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Solution
The fourth proportional to 126,910.70, 190,366.05 and 115,246.70 is: 172,870.05
Step by Step Solution
- Step 1: Write the proportion equation
126,910.70 : 190,366.05 = 115,246.70 : x - Step 2: Convert to fraction form
126,910.70/190,366.05 = 115,246.70/x - Step 3: Cross multiply
126,910.70x = 190,366.05 × 115,246.70 - Step 4: Simplify right side
126,910.70x = 21,939,059,054.54 - Step 5: Solve for x
x = 21,939,059,054.54/126,910.70 - Step 6: Final answer
x = 172,870.05
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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.