Finding the Fourth Proportional to 95,867.68, 132,328.80 and 85,778.08
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Solution
The fourth proportional to 95,867.68, 132,328.80 and 85,778.08 is: 118,401.85
Step by Step Solution
- Step 1: Write the proportion equation
95,867.68 : 132,328.80 = 85,778.08 : x - Step 2: Convert to fraction form
95,867.68/132,328.80 = 85,778.08/x - Step 3: Cross multiply
95,867.68x = 132,328.80 × 85,778.08 - Step 4: Simplify right side
95,867.68x = 11,350,910,392.70 - Step 5: Solve for x
x = 11,350,910,392.70/95,867.68 - Step 6: Final answer
x = 118,401.85
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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.