Finding the Fourth Proportional to 158,820.75, 219,192.08 and 91,752.75
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Solution
The fourth proportional to 158,820.75, 219,192.08 and 91,752.75 is: 126,630.03
Step by Step Solution
- Step 1: Write the proportion equation
158,820.75 : 219,192.08 = 91,752.75 : x - Step 2: Convert to fraction form
158,820.75/219,192.08 = 91,752.75/x - Step 3: Cross multiply
158,820.75x = 219,192.08 × 91,752.75 - Step 4: Simplify right side
158,820.75x = 20,111,475,659.46 - Step 5: Solve for x
x = 20,111,475,659.46/158,820.75 - Step 6: Final answer
x = 126,630.03
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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.