Finding the Fourth Proportional to 140,917.35, 211,138.29 and 69,745.08
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Solution
The fourth proportional to 140,917.35, 211,138.29 and 69,745.08 is: 104,499.96
Step by Step Solution
- Step 1: Write the proportion equation
140,917.35 : 211,138.29 = 69,745.08 : x - Step 2: Convert to fraction form
140,917.35/211,138.29 = 69,745.08/x - Step 3: Cross multiply
140,917.35x = 211,138.29 × 69,745.08 - Step 4: Simplify right side
140,917.35x = 14,725,856,927.11 - Step 5: Solve for x
x = 14,725,856,927.11/140,917.35 - Step 6: Final answer
x = 104,499.96
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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.