Finding the Fourth Proportional to 154,607.44, 213,787.74 and 122,720.98
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Solution
The fourth proportional to 154,607.44, 213,787.74 and 122,720.98 is: 169,695.85
Step by Step Solution
- Step 1: Write the proportion equation
154,607.44 : 213,787.74 = 122,720.98 : x - Step 2: Convert to fraction form
154,607.44/213,787.74 = 122,720.98/x - Step 3: Cross multiply
154,607.44x = 213,787.74 × 122,720.98 - Step 4: Simplify right side
154,607.44x = 26,236,240,964.79 - Step 5: Solve for x
x = 26,236,240,964.79/154,607.44 - Step 6: Final answer
x = 169,695.85
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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.