Finding the Fourth Proportional to 115,977.58, 173,670.99 and 76,414.78
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Solution
The fourth proportional to 115,977.58, 173,670.99 and 76,414.78 is: 114,427.55
Step by Step Solution
- Step 1: Write the proportion equation
115,977.58 : 173,670.99 = 76,414.78 : x - Step 2: Convert to fraction form
115,977.58/173,670.99 = 76,414.78/x - Step 3: Cross multiply
115,977.58x = 173,670.99 × 76,414.78 - Step 4: Simplify right side
115,977.58x = 13,271,030,493.23 - Step 5: Solve for x
x = 13,271,030,493.23/115,977.58 - Step 6: Final answer
x = 114,427.55
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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.