Finding the Fourth Proportional to 115,937.40, 173,675.70 and 66,631.80
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Solution
The fourth proportional to 115,937.40, 173,675.70 and 66,631.80 is: 99,815.28
Step by Step Solution
- Step 1: Write the proportion equation
115,937.40 : 173,675.70 = 66,631.80 : x - Step 2: Convert to fraction form
115,937.40/173,675.70 = 66,631.80/x - Step 3: Cross multiply
115,937.40x = 173,675.70 × 66,631.80 - Step 4: Simplify right side
115,937.40x = 11,572,324,507.26 - Step 5: Solve for x
x = 11,572,324,507.26/115,937.40 - Step 6: Final answer
x = 99,815.28
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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.