Finding the Fourth Proportional to 134,686.09, 185,861.21 and 73,430.96
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Solution
The fourth proportional to 134,686.09, 185,861.21 and 73,430.96 is: 101,331.67
Step by Step Solution
- Step 1: Write the proportion equation
134,686.09 : 185,861.21 = 73,430.96 : x - Step 2: Convert to fraction form
134,686.09/185,861.21 = 73,430.96/x - Step 3: Cross multiply
134,686.09x = 185,861.21 × 73,430.96 - Step 4: Simplify right side
134,686.09x = 13,647,965,987.13 - Step 5: Solve for x
x = 13,647,965,987.13/134,686.09 - Step 6: Final answer
x = 101,331.67
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.