Finding the Fourth Proportional to 126,579.24, 174,520.58 and 81,177.12
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Solution
The fourth proportional to 126,579.24, 174,520.58 and 81,177.12 is: 111,922.60
Step by Step Solution
- Step 1: Write the proportion equation
126,579.24 : 174,520.58 = 81,177.12 : x - Step 2: Convert to fraction form
126,579.24/174,520.58 = 81,177.12/x - Step 3: Cross multiply
126,579.24x = 174,520.58 × 81,177.12 - Step 4: Simplify right side
126,579.24x = 14,167,077,659.24 - Step 5: Solve for x
x = 14,167,077,659.24/126,579.24 - Step 6: Final answer
x = 111,922.60
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.