Finding the Fourth Proportional to 98,814.13, 147,876.74 and 80,836.99
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Solution
The fourth proportional to 98,814.13, 147,876.74 and 80,836.99 is: 120,973.69
Step by Step Solution
- Step 1: Write the proportion equation
98,814.13 : 147,876.74 = 80,836.99 : x - Step 2: Convert to fraction form
98,814.13/147,876.74 = 80,836.99/x - Step 3: Cross multiply
98,814.13x = 147,876.74 × 80,836.99 - Step 4: Simplify right side
98,814.13x = 11,953,910,081.87 - Step 5: Solve for x
x = 11,953,910,081.87/98,814.13 - Step 6: Final answer
x = 120,973.69
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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.