Finding the Fourth Proportional to 126,176.67, 174,134.27 and 72,472.05
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Solution
The fourth proportional to 126,176.67, 174,134.27 and 72,472.05 is: 100,017.44
Step by Step Solution
- Step 1: Write the proportion equation
126,176.67 : 174,134.27 = 72,472.05 : x - Step 2: Convert to fraction form
126,176.67/174,134.27 = 72,472.05/x - Step 3: Cross multiply
126,176.67x = 174,134.27 × 72,472.05 - Step 4: Simplify right side
126,176.67x = 12,619,867,703.33 - Step 5: Solve for x
x = 12,619,867,703.33/126,176.67 - Step 6: Final answer
x = 100,017.44
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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.