Finding the Fourth Proportional to 127,723.08, 176,258.12 and 74,018.44
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Solution
The fourth proportional to 127,723.08, 176,258.12 and 74,018.44 is: 102,145.60
Step by Step Solution
- Step 1: Write the proportion equation
127,723.08 : 176,258.12 = 74,018.44 : x - Step 2: Convert to fraction form
127,723.08/176,258.12 = 74,018.44/x - Step 3: Cross multiply
127,723.08x = 176,258.12 × 74,018.44 - Step 4: Simplify right side
127,723.08x = 13,046,351,079.73 - Step 5: Solve for x
x = 13,046,351,079.73/127,723.08 - Step 6: Final answer
x = 102,145.60
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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.