Finding the Fourth Proportional to 118,220.05, 163,203.84 and 91,302.13
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Solution
The fourth proportional to 118,220.05, 163,203.84 and 91,302.13 is: 126,043.41
Step by Step Solution
- Step 1: Write the proportion equation
118,220.05 : 163,203.84 = 91,302.13 : x - Step 2: Convert to fraction form
118,220.05/163,203.84 = 91,302.13/x - Step 3: Cross multiply
118,220.05x = 163,203.84 × 91,302.13 - Step 4: Simplify right side
118,220.05x = 14,900,858,216.18 - Step 5: Solve for x
x = 14,900,858,216.18/118,220.05 - Step 6: Final answer
x = 126,043.41
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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.