Finding the Fourth Proportional to 126,357.19, 174,372.81 and 72,652.70
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Solution
The fourth proportional to 126,357.19, 174,372.81 and 72,652.70 is: 100,260.66
Step by Step Solution
- Step 1: Write the proportion equation
126,357.19 : 174,372.81 = 72,652.70 : x - Step 2: Convert to fraction form
126,357.19/174,372.81 = 72,652.70/x - Step 3: Cross multiply
126,357.19x = 174,372.81 × 72,652.70 - Step 4: Simplify right side
126,357.19x = 12,668,655,453.09 - Step 5: Solve for x
x = 12,668,655,453.09/126,357.19 - Step 6: Final answer
x = 100,260.66
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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.