Finding the Fourth Proportional to 115,918.70, 173,878.05 and 32,812.70
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Solution
The fourth proportional to 115,918.70, 173,878.05 and 32,812.70 is: 49,219.05
Step by Step Solution
- Step 1: Write the proportion equation
115,918.70 : 173,878.05 = 32,812.70 : x - Step 2: Convert to fraction form
115,918.70/173,878.05 = 32,812.70/x - Step 3: Cross multiply
115,918.70x = 173,878.05 × 32,812.70 - Step 4: Simplify right side
115,918.70x = 5,705,408,291.24 - Step 5: Solve for x
x = 5,705,408,291.24/115,918.70 - Step 6: Final answer
x = 49,219.05
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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.