Finding the Fourth Proportional to 126,341.96, 189,449.52 and 42,072.44
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Solution
The fourth proportional to 126,341.96, 189,449.52 and 42,072.44 is: 63,087.54
Step by Step Solution
- Step 1: Write the proportion equation
126,341.96 : 189,449.52 = 42,072.44 : x - Step 2: Convert to fraction form
126,341.96/189,449.52 = 42,072.44/x - Step 3: Cross multiply
126,341.96x = 189,449.52 × 42,072.44 - Step 4: Simplify right side
126,341.96x = 7,970,603,563.23 - Step 5: Solve for x
x = 7,970,603,563.23/126,341.96 - Step 6: Final answer
x = 63,087.54
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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.