Finding the Fourth Proportional to 98,115.99, 147,217.32 and 76,120.44
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Solution
The fourth proportional to 98,115.99, 147,217.32 and 76,120.44 is: 114,214.28
Step by Step Solution
- Step 1: Write the proportion equation
98,115.99 : 147,217.32 = 76,120.44 : x - Step 2: Convert to fraction form
98,115.99/147,217.32 = 76,120.44/x - Step 3: Cross multiply
98,115.99x = 147,217.32 × 76,120.44 - Step 4: Simplify right side
98,115.99x = 11,206,247,174.02 - Step 5: Solve for x
x = 11,206,247,174.02/98,115.99 - Step 6: Final answer
x = 114,214.28
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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.