Finding the Fourth Proportional to 115,794.80, 173,254.80 and 76,428.80
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Solution
The fourth proportional to 115,794.80, 173,254.80 and 76,428.80 is: 114,354.50
Step by Step Solution
- Step 1: Write the proportion equation
115,794.80 : 173,254.80 = 76,428.80 : x - Step 2: Convert to fraction form
115,794.80/173,254.80 = 76,428.80/x - Step 3: Cross multiply
115,794.80x = 173,254.80 × 76,428.80 - Step 4: Simplify right side
115,794.80x = 13,241,656,458.24 - Step 5: Solve for x
x = 13,241,656,458.24/115,794.80 - Step 6: Final answer
x = 114,354.50
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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.