Finding the Fourth Proportional to 106,191.36, 159,197.76 and 71,023.68
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Solution
The fourth proportional to 106,191.36, 159,197.76 and 71,023.68 is: 106,475.81
Step by Step Solution
- Step 1: Write the proportion equation
106,191.36 : 159,197.76 = 71,023.68 : x - Step 2: Convert to fraction form
106,191.36/159,197.76 = 71,023.68/x - Step 3: Cross multiply
106,191.36x = 159,197.76 × 71,023.68 - Step 4: Simplify right side
106,191.36x = 11,306,810,762.96 - Step 5: Solve for x
x = 11,306,810,762.96/106,191.36 - Step 6: Final answer
x = 106,475.81
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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.