Finding the Fourth Proportional to 126,698.13, 189,991.16 and 37,935.09
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Solution
The fourth proportional to 126,698.13, 189,991.16 and 37,935.09 is: 56,885.86
Step by Step Solution
- Step 1: Write the proportion equation
126,698.13 : 189,991.16 = 37,935.09 : x - Step 2: Convert to fraction form
126,698.13/189,991.16 = 37,935.09/x - Step 3: Cross multiply
126,698.13x = 189,991.16 × 37,935.09 - Step 4: Simplify right side
126,698.13x = 7,207,331,564.13 - Step 5: Solve for x
x = 7,207,331,564.13/126,698.13 - Step 6: Final answer
x = 56,885.86
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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.