Finding the Fourth Proportional to 97,051.76, 133,899.36 and 79,115.90
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Solution
The fourth proportional to 97,051.76, 133,899.36 and 79,115.90 is: 109,153.80
Step by Step Solution
- Step 1: Write the proportion equation
97,051.76 : 133,899.36 = 79,115.90 : x - Step 2: Convert to fraction form
97,051.76/133,899.36 = 79,115.90/x - Step 3: Cross multiply
97,051.76x = 133,899.36 × 79,115.90 - Step 4: Simplify right side
97,051.76x = 10,593,568,375.82 - Step 5: Solve for x
x = 10,593,568,375.82/97,051.76 - Step 6: Final answer
x = 109,153.80
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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.