Finding the Fourth Proportional to 122,251.50, 168,715.17 and 68,539.99
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Solution
The fourth proportional to 122,251.50, 168,715.17 and 68,539.99 is: 94,589.73
Step by Step Solution
- Step 1: Write the proportion equation
122,251.50 : 168,715.17 = 68,539.99 : x - Step 2: Convert to fraction form
122,251.50/168,715.17 = 68,539.99/x - Step 3: Cross multiply
122,251.50x = 168,715.17 × 68,539.99 - Step 4: Simplify right side
122,251.50x = 11,563,736,064.65 - Step 5: Solve for x
x = 11,563,736,064.65/122,251.50 - Step 6: Final answer
x = 94,589.73
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.