Finding the Fourth Proportional to 126,738.52, 174,917.58 and 73,013.08
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Solution
The fourth proportional to 126,738.52, 174,917.58 and 73,013.08 is: 100,768.66
Step by Step Solution
- Step 1: Write the proportion equation
126,738.52 : 174,917.58 = 73,013.08 : x - Step 2: Convert to fraction form
126,738.52/174,917.58 = 73,013.08/x - Step 3: Cross multiply
126,738.52x = 174,917.58 × 73,013.08 - Step 4: Simplify right side
126,738.52x = 12,771,271,261.95 - Step 5: Solve for x
x = 12,771,271,261.95/126,738.52 - Step 6: Final answer
x = 100,768.66
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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.