Finding the Fourth Proportional to 98,723.70, 136,175.99 and 64,734.44
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Solution
The fourth proportional to 98,723.70, 136,175.99 and 64,734.44 is: 89,292.39
Step by Step Solution
- Step 1: Write the proportion equation
98,723.70 : 136,175.99 = 64,734.44 : x - Step 2: Convert to fraction form
98,723.70/136,175.99 = 64,734.44/x - Step 3: Cross multiply
98,723.70x = 136,175.99 × 64,734.44 - Step 4: Simplify right side
98,723.70x = 8,815,275,449.54 - Step 5: Solve for x
x = 8,815,275,449.54/98,723.70 - Step 6: Final answer
x = 89,292.39
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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.