Finding the Fourth Proportional to 115,919.70, 162,637.50 and 115,919.70
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Solution
The fourth proportional to 115,919.70, 162,637.50 and 115,919.70 is: 162,637.50
Step by Step Solution
- Step 1: Write the proportion equation
115,919.70 : 162,637.50 = 115,919.70 : x - Step 2: Convert to fraction form
115,919.70/162,637.50 = 115,919.70/x - Step 3: Cross multiply
115,919.70x = 162,637.50 × 115,919.70 - Step 4: Simplify right side
115,919.70x = 18,852,890,208.75 - Step 5: Solve for x
x = 18,852,890,208.75/115,919.70 - Step 6: Final answer
x = 162,637.50
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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.