Finding the Fourth Proportional to 118,170.22, 163,135.11 and 91,252.30
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Solution
The fourth proportional to 118,170.22, 163,135.11 and 91,252.30 is: 125,974.66
Step by Step Solution
- Step 1: Write the proportion equation
118,170.22 : 163,135.11 = 91,252.30 : x - Step 2: Convert to fraction form
118,170.22/163,135.11 = 91,252.30/x - Step 3: Cross multiply
118,170.22x = 163,135.11 × 91,252.30 - Step 4: Simplify right side
118,170.22x = 14,886,454,063.89 - Step 5: Solve for x
x = 14,886,454,063.89/118,170.22 - Step 6: Final answer
x = 125,974.66
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1.5x scale
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.