Finding the Fourth Proportional to 134,891.64, 186,160.77 and 74,473.92
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Solution
The fourth proportional to 134,891.64, 186,160.77 and 74,473.92 is: 102,779.70
Step by Step Solution
- Step 1: Write the proportion equation
134,891.64 : 186,160.77 = 74,473.92 : x - Step 2: Convert to fraction form
134,891.64/186,160.77 = 74,473.92/x - Step 3: Cross multiply
134,891.64x = 186,160.77 × 74,473.92 - Step 4: Simplify right side
134,891.64x = 13,864,122,292.12 - Step 5: Solve for x
x = 13,864,122,292.12/134,891.64 - Step 6: Final answer
x = 102,779.70
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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.