Finding the Fourth Proportional to 115,917.70, 162,634.70 and 115,917.70
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Solution
The fourth proportional to 115,917.70, 162,634.70 and 115,917.70 is: 162,634.70
Step by Step Solution
- Step 1: Write the proportion equation
115,917.70 : 162,634.70 = 115,917.70 : x - Step 2: Convert to fraction form
115,917.70/162,634.70 = 115,917.70/x - Step 3: Cross multiply
115,917.70x = 162,634.70 × 115,917.70 - Step 4: Simplify right side
115,917.70x = 18,852,240,364.19 - Step 5: Solve for x
x = 18,852,240,364.19/115,917.70 - Step 6: Final answer
x = 162,634.70
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.