Finding the Fourth Proportional to 98,279.21, 147,418.67 and 78,464.99
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Solution
The fourth proportional to 98,279.21, 147,418.67 and 78,464.99 is: 117,697.36
Step by Step Solution
- Step 1: Write the proportion equation
98,279.21 : 147,418.67 = 78,464.99 : x - Step 2: Convert to fraction form
98,279.21/147,418.67 = 78,464.99/x - Step 3: Cross multiply
98,279.21x = 147,418.67 × 78,464.99 - Step 4: Simplify right side
98,279.21x = 11,567,203,337.95 - Step 5: Solve for x
x = 11,567,203,337.95/98,279.21 - Step 6: Final answer
x = 117,697.36
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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.