Finding the Fourth Proportional to 161,920.06, 242,821.76 and 68,433.10
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Solution
The fourth proportional to 161,920.06, 242,821.76 and 68,433.10 is: 102,624.99
Step by Step Solution
- Step 1: Write the proportion equation
161,920.06 : 242,821.76 = 68,433.10 : x - Step 2: Convert to fraction form
161,920.06/242,821.76 = 68,433.10/x - Step 3: Cross multiply
161,920.06x = 242,821.76 × 68,433.10 - Step 4: Simplify right side
161,920.06x = 16,617,044,835.04 - Step 5: Solve for x
x = 16,617,044,835.04/161,920.06 - Step 6: Final answer
x = 102,624.99
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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.