Finding the Fourth Proportional to 126,018.88, 173,905.95 and 69,430.26
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Solution
The fourth proportional to 126,018.88, 173,905.95 and 69,430.26 is: 95,813.70
Step by Step Solution
- Step 1: Write the proportion equation
126,018.88 : 173,905.95 = 69,430.26 : x - Step 2: Convert to fraction form
126,018.88/173,905.95 = 69,430.26/x - Step 3: Cross multiply
126,018.88x = 173,905.95 × 69,430.26 - Step 4: Simplify right side
126,018.88x = 12,074,335,324.05 - Step 5: Solve for x
x = 12,074,335,324.05/126,018.88 - Step 6: Final answer
x = 95,813.70
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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.