Finding the Fourth Proportional to 107,072.10, 160,608.15 and 102,989.70
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Solution
The fourth proportional to 107,072.10, 160,608.15 and 102,989.70 is: 154,484.55
Step by Step Solution
- Step 1: Write the proportion equation
107,072.10 : 160,608.15 = 102,989.70 : x - Step 2: Convert to fraction form
107,072.10/160,608.15 = 102,989.70/x - Step 3: Cross multiply
107,072.10x = 160,608.15 × 102,989.70 - Step 4: Simplify right side
107,072.10x = 16,540,985,186.06 - Step 5: Solve for x
x = 16,540,985,186.06/107,072.10 - Step 6: Final answer
x = 154,484.55
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Similar ratio
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.