Finding the Fourth Proportional to 126,343.99, 174,276.12 and 75,321.28
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Solution
The fourth proportional to 126,343.99, 174,276.12 and 75,321.28 is: 103,896.52
Step by Step Solution
- Step 1: Write the proportion equation
126,343.99 : 174,276.12 = 75,321.28 : x - Step 2: Convert to fraction form
126,343.99/174,276.12 = 75,321.28/x - Step 3: Cross multiply
126,343.99x = 174,276.12 × 75,321.28 - Step 4: Simplify right side
126,343.99x = 13,126,700,431.83 - Step 5: Solve for x
x = 13,126,700,431.83/126,343.99 - Step 6: Final answer
x = 103,896.52
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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.