Finding the Fourth Proportional to 118,533.97, 163,636.37 and 91,615.65
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Solution
The fourth proportional to 118,533.97, 163,636.37 and 91,615.65 is: 126,475.58
Step by Step Solution
- Step 1: Write the proportion equation
118,533.97 : 163,636.37 = 91,615.65 : x - Step 2: Convert to fraction form
118,533.97/163,636.37 = 91,615.65/x - Step 3: Cross multiply
118,533.97x = 163,636.37 × 91,615.65 - Step 4: Simplify right side
118,533.97x = 14,991,652,401.19 - Step 5: Solve for x
x = 14,991,652,401.19/118,533.97 - Step 6: Final answer
x = 126,475.58
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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.