Finding the Fourth Proportional to 126,577.14, 189,865.88 and 51,697.28
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Solution
The fourth proportional to 126,577.14, 189,865.88 and 51,697.28 is: 77,545.99
Step by Step Solution
- Step 1: Write the proportion equation
126,577.14 : 189,865.88 = 51,697.28 : x - Step 2: Convert to fraction form
126,577.14/189,865.88 = 51,697.28/x - Step 3: Cross multiply
126,577.14x = 189,865.88 × 51,697.28 - Step 4: Simplify right side
126,577.14x = 9,815,549,560.81 - Step 5: Solve for x
x = 9,815,549,560.81/126,577.14 - Step 6: Final answer
x = 77,545.99
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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.