Finding the Fourth Proportional to 112,329.33, 168,532.88 and 75,039.09
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Solution
The fourth proportional to 112,329.33, 168,532.88 and 75,039.09 is: 112,584.61
Step by Step Solution
- Step 1: Write the proportion equation
112,329.33 : 168,532.88 = 75,039.09 : x - Step 2: Convert to fraction form
112,329.33/168,532.88 = 75,039.09/x - Step 3: Cross multiply
112,329.33x = 168,532.88 × 75,039.09 - Step 4: Simplify right side
112,329.33x = 12,646,553,575.08 - Step 5: Solve for x
x = 12,646,553,575.08/112,329.33 - Step 6: Final answer
x = 112,584.61
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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.