Finding the Fourth Proportional to 115,904.05, 173,856.08 and 71,617.30
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Solution
The fourth proportional to 115,904.05, 173,856.08 and 71,617.30 is: 107,425.95
Step by Step Solution
- Step 1: Write the proportion equation
115,904.05 : 173,856.08 = 71,617.30 : x - Step 2: Convert to fraction form
115,904.05/173,856.08 = 71,617.30/x - Step 3: Cross multiply
115,904.05x = 173,856.08 × 71,617.30 - Step 4: Simplify right side
115,904.05x = 12,451,102,680.10 - Step 5: Solve for x
x = 12,451,102,680.10/115,904.05 - Step 6: Final answer
x = 107,425.95
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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.