Finding the Fourth Proportional to 155,334.66, 214,434.03 and 117,109.68
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Solution
The fourth proportional to 155,334.66, 214,434.03 and 117,109.68 is: 161,665.79
Step by Step Solution
- Step 1: Write the proportion equation
155,334.66 : 214,434.03 = 117,109.68 : x - Step 2: Convert to fraction form
155,334.66/214,434.03 = 117,109.68/x - Step 3: Cross multiply
155,334.66x = 214,434.03 × 117,109.68 - Step 4: Simplify right side
155,334.66x = 25,112,300,634.41 - Step 5: Solve for x
x = 25,112,300,634.41/155,334.66 - Step 6: Final answer
x = 161,665.79
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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.