Finding the Fourth Proportional to 117,104.54, 161,604.21 and 63,389.99
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Solution
The fourth proportional to 117,104.54, 161,604.21 and 63,389.99 is: 87,478.17
Step by Step Solution
- Step 1: Write the proportion equation
117,104.54 : 161,604.21 = 63,389.99 : x - Step 2: Convert to fraction form
117,104.54/161,604.21 = 63,389.99/x - Step 3: Cross multiply
117,104.54x = 161,604.21 × 63,389.99 - Step 4: Simplify right side
117,104.54x = 10,244,089,897.58 - Step 5: Solve for x
x = 10,244,089,897.58/117,104.54 - Step 6: Final answer
x = 87,478.17
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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.