Finding the Fourth Proportional to 168,177.28, 252,139.50 and 79,380.28
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Solution
The fourth proportional to 168,177.28, 252,139.50 and 79,380.28 is: 119,010.75
Step by Step Solution
- Step 1: Write the proportion equation
168,177.28 : 252,139.50 = 79,380.28 : x - Step 2: Convert to fraction form
168,177.28/252,139.50 = 79,380.28/x - Step 3: Cross multiply
168,177.28x = 252,139.50 × 79,380.28 - Step 4: Simplify right side
168,177.28x = 20,014,904,109.06 - Step 5: Solve for x
x = 20,014,904,109.06/168,177.28 - Step 6: Final answer
x = 119,010.75
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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.