Finding the Fourth Proportional to 145,354.18, 218,115.60 and 61,107.70
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Solution
The fourth proportional to 145,354.18, 218,115.60 and 61,107.70 is: 91,697.00
Step by Step Solution
- Step 1: Write the proportion equation
145,354.18 : 218,115.60 = 61,107.70 : x - Step 2: Convert to fraction form
145,354.18/218,115.60 = 61,107.70/x - Step 3: Cross multiply
145,354.18x = 218,115.60 × 61,107.70 - Step 4: Simplify right side
145,354.18x = 13,328,542,650.12 - Step 5: Solve for x
x = 13,328,542,650.12/145,354.18 - Step 6: Final answer
x = 91,697.00
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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.