Finding the Fourth Proportional to 126,575.14, 189,862.88 and 51,695.28
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Solution
The fourth proportional to 126,575.14, 189,862.88 and 51,695.28 is: 77,542.99
Step by Step Solution
- Step 1: Write the proportion equation
126,575.14 : 189,862.88 = 51,695.28 : x - Step 2: Convert to fraction form
126,575.14/189,862.88 = 51,695.28/x - Step 3: Cross multiply
126,575.14x = 189,862.88 × 51,695.28 - Step 4: Simplify right side
126,575.14x = 9,815,014,743.21 - Step 5: Solve for x
x = 9,815,014,743.21/126,575.14 - Step 6: Final answer
x = 77,542.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.