Finding the Fourth Proportional to 132,942.35, 183,460.45 and 72,512.99
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Solution
The fourth proportional to 132,942.35, 183,460.45 and 72,512.99 is: 100,067.93
Step by Step Solution
- Step 1: Write the proportion equation
132,942.35 : 183,460.45 = 72,512.99 : x - Step 2: Convert to fraction form
132,942.35/183,460.45 = 72,512.99/x - Step 3: Cross multiply
132,942.35x = 183,460.45 × 72,512.99 - Step 4: Simplify right side
132,942.35x = 13,303,266,020.65 - Step 5: Solve for x
x = 13,303,266,020.65/132,942.35 - Step 6: Final answer
x = 100,067.93
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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.