Finding the Fourth Proportional to 173,313.20, 259,969.80 and 84,739.70
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Solution
The fourth proportional to 173,313.20, 259,969.80 and 84,739.70 is: 127,109.55
Step by Step Solution
- Step 1: Write the proportion equation
173,313.20 : 259,969.80 = 84,739.70 : x - Step 2: Convert to fraction form
173,313.20/259,969.80 = 84,739.70/x - Step 3: Cross multiply
173,313.20x = 259,969.80 × 84,739.70 - Step 4: Simplify right side
173,313.20x = 22,029,762,861.06 - Step 5: Solve for x
x = 22,029,762,861.06/173,313.20 - Step 6: Final answer
x = 127,109.55
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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.