Finding the Fourth Proportional to 131,005.55, 196,368.16 and 67,761.99
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Solution
The fourth proportional to 131,005.55, 196,368.16 and 67,761.99 is: 101,570.49
Step by Step Solution
- Step 1: Write the proportion equation
131,005.55 : 196,368.16 = 67,761.99 : x - Step 2: Convert to fraction form
131,005.55/196,368.16 = 67,761.99/x - Step 3: Cross multiply
131,005.55x = 196,368.16 × 67,761.99 - Step 4: Simplify right side
131,005.55x = 13,306,297,294.24 - Step 5: Solve for x
x = 13,306,297,294.24/131,005.55 - Step 6: Final answer
x = 101,570.49
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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.