Finding the Fourth Proportional to 118,410.75, 163,406.84 and 68,109.75
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Solution
The fourth proportional to 118,410.75, 163,406.84 and 68,109.75 is: 93,991.46
Step by Step Solution
- Step 1: Write the proportion equation
118,410.75 : 163,406.84 = 68,109.75 : x - Step 2: Convert to fraction form
118,410.75/163,406.84 = 68,109.75/x - Step 3: Cross multiply
118,410.75x = 163,406.84 × 68,109.75 - Step 4: Simplify right side
118,410.75x = 11,129,598,680.14 - Step 5: Solve for x
x = 11,129,598,680.14/118,410.75 - Step 6: Final answer
x = 93,991.46
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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.