Finding the Fourth Proportional to 168,766.78, 253,274.74 and 80,020.62
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Solution
The fourth proportional to 168,766.78, 253,274.74 and 80,020.62 is: 120,089.99
Step by Step Solution
- Step 1: Write the proportion equation
168,766.78 : 253,274.74 = 80,020.62 : x - Step 2: Convert to fraction form
168,766.78/253,274.74 = 80,020.62/x - Step 3: Cross multiply
168,766.78x = 253,274.74 × 80,020.62 - Step 4: Simplify right side
168,766.78x = 20,267,201,725.14 - Step 5: Solve for x
x = 20,267,201,725.14/168,766.78 - Step 6: Final answer
x = 120,089.99
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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.