Finding the Fourth Proportional to 122,964.08, 169,711.20 and 75,232.80
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Solution
The fourth proportional to 122,964.08, 169,711.20 and 75,232.80 is: 103,833.98
Step by Step Solution
- Step 1: Write the proportion equation
122,964.08 : 169,711.20 = 75,232.80 : x - Step 2: Convert to fraction form
122,964.08/169,711.20 = 75,232.80/x - Step 3: Cross multiply
122,964.08x = 169,711.20 × 75,232.80 - Step 4: Simplify right side
122,964.08x = 12,767,848,767.36 - Step 5: Solve for x
x = 12,767,848,767.36/122,964.08 - Step 6: Final answer
x = 103,833.98
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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.