Finding the Fourth Proportional to 133,046.75, 199,464.12 and 76,823.08
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Solution
The fourth proportional to 133,046.75, 199,464.12 and 76,823.08 is: 115,173.41
Step by Step Solution
- Step 1: Write the proportion equation
133,046.75 : 199,464.12 = 76,823.08 : x - Step 2: Convert to fraction form
133,046.75/199,464.12 = 76,823.08/x - Step 3: Cross multiply
133,046.75x = 199,464.12 × 76,823.08 - Step 4: Simplify right side
133,046.75x = 15,323,448,671.22 - Step 5: Solve for x
x = 15,323,448,671.22/133,046.75 - Step 6: Final answer
x = 115,173.41
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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.