Finding the Fourth Proportional to 122,927.36, 169,644.99 and 68,479.46
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Solution
The fourth proportional to 122,927.36, 169,644.99 and 68,479.46 is: 94,504.57
Step by Step Solution
- Step 1: Write the proportion equation
122,927.36 : 169,644.99 = 68,479.46 : x - Step 2: Convert to fraction form
122,927.36/169,644.99 = 68,479.46/x - Step 3: Cross multiply
122,927.36x = 169,644.99 × 68,479.46 - Step 4: Simplify right side
122,927.36x = 11,617,197,474.22 - Step 5: Solve for x
x = 11,617,197,474.22/122,927.36 - Step 6: Final answer
x = 94,504.57
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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.