Finding the Fourth Proportional to 127,341.06, 175,731.71 and 79,622.07
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Solution
The fourth proportional to 127,341.06, 175,731.71 and 79,622.07 is: 109,879.11
Step by Step Solution
- Step 1: Write the proportion equation
127,341.06 : 175,731.71 = 79,622.07 : x - Step 2: Convert to fraction form
127,341.06/175,731.71 = 79,622.07/x - Step 3: Cross multiply
127,341.06x = 175,731.71 × 79,622.07 - Step 4: Simplify right side
127,341.06x = 13,992,122,116.73 - Step 5: Solve for x
x = 13,992,122,116.73/127,341.06 - Step 6: Final answer
x = 109,879.11
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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.