Finding the Fourth Proportional to 126,732.99, 174,871.95 and 73,007.49
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Solution
The fourth proportional to 126,732.99, 174,871.95 and 73,007.49 is: 100,739.06
Step by Step Solution
- Step 1: Write the proportion equation
126,732.99 : 174,871.95 = 73,007.49 : x - Step 2: Convert to fraction form
126,732.99/174,871.95 = 73,007.49/x - Step 3: Cross multiply
126,732.99x = 174,871.95 × 73,007.49 - Step 4: Simplify right side
126,732.99x = 12,766,962,140.91 - Step 5: Solve for x
x = 12,766,962,140.91/126,732.99 - Step 6: Final answer
x = 100,739.06
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1.5x scale
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.