Finding the Fourth Proportional to 99,143.68, 148,704.64 and 29,023.68
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Solution
The fourth proportional to 99,143.68, 148,704.64 and 29,023.68 is: 43,532.33
Step by Step Solution
- Step 1: Write the proportion equation
99,143.68 : 148,704.64 = 29,023.68 : x - Step 2: Convert to fraction form
99,143.68/148,704.64 = 29,023.68/x - Step 3: Cross multiply
99,143.68x = 148,704.64 × 29,023.68 - Step 4: Simplify right side
99,143.68x = 4,315,955,885.88 - Step 5: Solve for x
x = 4,315,955,885.88/99,143.68 - Step 6: Final answer
x = 43,532.33
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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.