Finding the Fourth Proportional to 161,920.24, 223,373.67 and 105,310.96
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Solution
The fourth proportional to 161,920.24, 223,373.67 and 105,310.96 is: 145,279.53
Step by Step Solution
- Step 1: Write the proportion equation
161,920.24 : 223,373.67 = 105,310.96 : x - Step 2: Convert to fraction form
161,920.24/223,373.67 = 105,310.96/x - Step 3: Cross multiply
161,920.24x = 223,373.67 × 105,310.96 - Step 4: Simplify right side
161,920.24x = 23,523,695,626.42 - Step 5: Solve for x
x = 23,523,695,626.42/161,920.24 - Step 6: Final answer
x = 145,279.53
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.