Finding the Fourth Proportional to 126,190.48, 189,560.60 and 76,294.09
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Solution
The fourth proportional to 126,190.48, 189,560.60 and 76,294.09 is: 114,607.32
Step by Step Solution
- Step 1: Write the proportion equation
126,190.48 : 189,560.60 = 76,294.09 : x - Step 2: Convert to fraction form
126,190.48/189,560.60 = 76,294.09/x - Step 3: Cross multiply
126,190.48x = 189,560.60 × 76,294.09 - Step 4: Simplify right side
126,190.48x = 14,462,353,095.38 - Step 5: Solve for x
x = 14,462,353,095.38/126,190.48 - Step 6: Final answer
x = 114,607.32
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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.