Finding the Fourth Proportional to 144,709.76, 216,889.68 and 74,550.80
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Solution
The fourth proportional to 144,709.76, 216,889.68 and 74,550.80 is: 111,736.07
Step by Step Solution
- Step 1: Write the proportion equation
144,709.76 : 216,889.68 = 74,550.80 : x - Step 2: Convert to fraction form
144,709.76/216,889.68 = 74,550.80/x - Step 3: Cross multiply
144,709.76x = 216,889.68 × 74,550.80 - Step 4: Simplify right side
144,709.76x = 16,169,299,155.74 - Step 5: Solve for x
x = 16,169,299,155.74/144,709.76 - Step 6: Final answer
x = 111,736.07
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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.