Finding the Fourth Proportional to 115,173.05, 172,809.77 and 40,346.87
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Solution
The fourth proportional to 115,173.05, 172,809.77 and 40,346.87 is: 60,537.88
Step by Step Solution
- Step 1: Write the proportion equation
115,173.05 : 172,809.77 = 40,346.87 : x - Step 2: Convert to fraction form
115,173.05/172,809.77 = 40,346.87/x - Step 3: Cross multiply
115,173.05x = 172,809.77 × 40,346.87 - Step 4: Simplify right side
115,173.05x = 6,972,332,259.14 - Step 5: Solve for x
x = 6,972,332,259.14/115,173.05 - Step 6: Final answer
x = 60,537.88
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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.