Finding the Fourth Proportional to 107,049.12, 147,727.68 and 59,305.44
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Solution
The fourth proportional to 107,049.12, 147,727.68 and 59,305.44 is: 81,841.45
Step by Step Solution
- Step 1: Write the proportion equation
107,049.12 : 147,727.68 = 59,305.44 : x - Step 2: Convert to fraction form
107,049.12/147,727.68 = 59,305.44/x - Step 3: Cross multiply
107,049.12x = 147,727.68 × 59,305.44 - Step 4: Simplify right side
107,049.12x = 8,761,055,062.58 - Step 5: Solve for x
x = 8,761,055,062.58/107,049.12 - Step 6: Final answer
x = 81,841.45
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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.