Finding the Fourth Proportional to 141,175.08, 194,821.74 and 76,644.26
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Solution
The fourth proportional to 141,175.08, 194,821.74 and 76,644.26 is: 105,769.15
Step by Step Solution
- Step 1: Write the proportion equation
141,175.08 : 194,821.74 = 76,644.26 : x - Step 2: Convert to fraction form
141,175.08/194,821.74 = 76,644.26/x - Step 3: Cross multiply
141,175.08x = 194,821.74 × 76,644.26 - Step 4: Simplify right side
141,175.08x = 14,931,968,094.21 - Step 5: Solve for x
x = 14,931,968,094.21/141,175.08 - Step 6: Final answer
x = 105,769.15
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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.