Finding the Fourth Proportional to 105,199.34, 145,175.62 and 57,452.68
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Solution
The fourth proportional to 105,199.34, 145,175.62 and 57,452.68 is: 79,284.99
Step by Step Solution
- Step 1: Write the proportion equation
105,199.34 : 145,175.62 = 57,452.68 : x - Step 2: Convert to fraction form
105,199.34/145,175.62 = 57,452.68/x - Step 3: Cross multiply
105,199.34x = 145,175.62 × 57,452.68 - Step 4: Simplify right side
105,199.34x = 8,340,728,439.66 - Step 5: Solve for x
x = 8,340,728,439.66/105,199.34 - Step 6: Final answer
x = 79,284.99
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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.