Finding the Fourth Proportional to 110,115.05, 151,969.34 and 61,716.74
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Solution
The fourth proportional to 110,115.05, 151,969.34 and 61,716.74 is: 85,175.02
Step by Step Solution
- Step 1: Write the proportion equation
110,115.05 : 151,969.34 = 61,716.74 : x - Step 2: Convert to fraction form
110,115.05/151,969.34 = 61,716.74/x - Step 3: Cross multiply
110,115.05x = 151,969.34 × 61,716.74 - Step 4: Simplify right side
110,115.05x = 9,379,051,639.20 - Step 5: Solve for x
x = 9,379,051,639.20/110,115.05 - Step 6: Final answer
x = 85,175.02
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1.5x scale
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.