Finding the Fourth Proportional to 136,679.68, 188,613.36 and 80,089.84
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Solution
The fourth proportional to 136,679.68, 188,613.36 and 80,089.84 is: 110,521.28
Step by Step Solution
- Step 1: Write the proportion equation
136,679.68 : 188,613.36 = 80,089.84 : x - Step 2: Convert to fraction form
136,679.68/188,613.36 = 80,089.84/x - Step 3: Cross multiply
136,679.68x = 188,613.36 × 80,089.84 - Step 4: Simplify right side
136,679.68x = 15,106,013,824.26 - Step 5: Solve for x
x = 15,106,013,824.26/136,679.68 - Step 6: Final answer
x = 110,521.28
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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.