Finding the Fourth Proportional to 118,618.18, 177,882.56 and 38,635.26
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Solution
The fourth proportional to 118,618.18, 177,882.56 and 38,635.26 is: 57,938.33
Step by Step Solution
- Step 1: Write the proportion equation
118,618.18 : 177,882.56 = 38,635.26 : x - Step 2: Convert to fraction form
118,618.18/177,882.56 = 38,635.26/x - Step 3: Cross multiply
118,618.18x = 177,882.56 × 38,635.26 - Step 4: Simplify right side
118,618.18x = 6,872,538,955.07 - Step 5: Solve for x
x = 6,872,538,955.07/118,618.18 - Step 6: Final answer
x = 57,938.33
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.