Finding the Fourth Proportional to 122,515.04, 169,088.92 and 74,796.06
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Solution
The fourth proportional to 122,515.04, 169,088.92 and 74,796.06 is: 103,229.65
Step by Step Solution
- Step 1: Write the proportion equation
122,515.04 : 169,088.92 = 74,796.06 : x - Step 2: Convert to fraction form
122,515.04/169,088.92 = 74,796.06/x - Step 3: Cross multiply
122,515.04x = 169,088.92 × 74,796.06 - Step 4: Simplify right side
122,515.04x = 12,647,185,005.66 - Step 5: Solve for x
x = 12,647,185,005.66/122,515.04 - Step 6: Final answer
x = 103,229.65
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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.