Finding the Fourth Proportional to 154,540.98, 213,252.21 and 87,472.98
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Solution
The fourth proportional to 154,540.98, 213,252.21 and 87,472.98 is: 120,704.59
Step by Step Solution
- Step 1: Write the proportion equation
154,540.98 : 213,252.21 = 87,472.98 : x - Step 2: Convert to fraction form
154,540.98/213,252.21 = 87,472.98/x - Step 3: Cross multiply
154,540.98x = 213,252.21 × 87,472.98 - Step 4: Simplify right side
154,540.98x = 18,653,806,300.29 - Step 5: Solve for x
x = 18,653,806,300.29/154,540.98 - Step 6: Final answer
x = 120,704.59
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.