Finding the Fourth Proportional to 126,228.97, 174,259.11 and 78,497.70
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Solution
The fourth proportional to 126,228.97, 174,259.11 and 78,497.70 is: 108,366.09
Step by Step Solution
- Step 1: Write the proportion equation
126,228.97 : 174,259.11 = 78,497.70 : x - Step 2: Convert to fraction form
126,228.97/174,259.11 = 78,497.70/x - Step 3: Cross multiply
126,228.97x = 174,259.11 × 78,497.70 - Step 4: Simplify right side
126,228.97x = 13,678,939,339.05 - Step 5: Solve for x
x = 13,678,939,339.05/126,228.97 - Step 6: Final answer
x = 108,366.09
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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.