Finding the Fourth Proportional to 144,736.36, 217,178.70 and 68,920.76
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Solution
The fourth proportional to 144,736.36, 217,178.70 and 68,920.76 is: 103,416.45
Step by Step Solution
- Step 1: Write the proportion equation
144,736.36 : 217,178.70 = 68,920.76 : x - Step 2: Convert to fraction form
144,736.36/217,178.70 = 68,920.76/x - Step 3: Cross multiply
144,736.36x = 217,178.70 × 68,920.76 - Step 4: Simplify right side
144,736.36x = 14,968,121,059.81 - Step 5: Solve for x
x = 14,968,121,059.81/144,736.36 - Step 6: Final answer
x = 103,416.45
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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.