Finding the Fourth Proportional to 132,911.19, 199,339.59 and 38,115.99
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Solution
The fourth proportional to 132,911.19, 199,339.59 and 38,115.99 is: 57,166.19
Step by Step Solution
- Step 1: Write the proportion equation
132,911.19 : 199,339.59 = 38,115.99 : x - Step 2: Convert to fraction form
132,911.19/199,339.59 = 38,115.99/x - Step 3: Cross multiply
132,911.19x = 199,339.59 × 38,115.99 - Step 4: Simplify right side
132,911.19x = 7,598,025,819.04 - Step 5: Solve for x
x = 7,598,025,819.04/132,911.19 - Step 6: Final answer
x = 57,166.19
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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.