Finding the Fourth Proportional to 145,635.19, 218,537.70 and 61,390.20
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Solution
The fourth proportional to 145,635.19, 218,537.70 and 61,390.20 is: 92,121.09
Step by Step Solution
- Step 1: Write the proportion equation
145,635.19 : 218,537.70 = 61,390.20 : x - Step 2: Convert to fraction form
145,635.19/218,537.70 = 61,390.20/x - Step 3: Cross multiply
145,635.19x = 218,537.70 × 61,390.20 - Step 4: Simplify right side
145,635.19x = 13,416,072,017.85 - Step 5: Solve for x
x = 13,416,072,017.85/145,635.19 - Step 6: Final answer
x = 92,121.09
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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.