Finding the Fourth Proportional to 90,748.18, 136,128.75 and 24,187.96
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Solution
The fourth proportional to 90,748.18, 136,128.75 and 24,187.96 is: 36,283.67
Step by Step Solution
- Step 1: Write the proportion equation
90,748.18 : 136,128.75 = 24,187.96 : x - Step 2: Convert to fraction form
90,748.18/136,128.75 = 24,187.96/x - Step 3: Cross multiply
90,748.18x = 136,128.75 × 24,187.96 - Step 4: Simplify right side
90,748.18x = 3,292,676,759.85 - Step 5: Solve for x
x = 3,292,676,759.85/90,748.18 - Step 6: Final answer
x = 36,283.67
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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.