Finding the Fourth Proportional to 115,405.21, 173,130.23 and 44,322.63
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Solution
The fourth proportional to 115,405.21, 173,130.23 and 44,322.63 is: 66,492.55
Step by Step Solution
- Step 1: Write the proportion equation
115,405.21 : 173,130.23 = 44,322.63 : x - Step 2: Convert to fraction form
115,405.21/173,130.23 = 44,322.63/x - Step 3: Cross multiply
115,405.21x = 173,130.23 × 44,322.63 - Step 4: Simplify right side
115,405.21x = 7,673,587,126.10 - Step 5: Solve for x
x = 7,673,587,126.10/115,405.21 - Step 6: Final answer
x = 66,492.55
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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.