Finding the Fourth Proportional to 99,279.81, 148,993.55 and 40,115.99
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Solution
The fourth proportional to 99,279.81, 148,993.55 and 40,115.99 is: 60,203.81
Step by Step Solution
- Step 1: Write the proportion equation
99,279.81 : 148,993.55 = 40,115.99 : x - Step 2: Convert to fraction form
99,279.81/148,993.55 = 40,115.99/x - Step 3: Cross multiply
99,279.81x = 148,993.55 × 40,115.99 - Step 4: Simplify right side
99,279.81x = 5,977,022,816.32 - Step 5: Solve for x
x = 5,977,022,816.32/99,279.81 - Step 6: Final answer
x = 60,203.81
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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.