Finding the Fourth Proportional to 103,906.08, 155,928.16 and 38,242.08
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Solution
The fourth proportional to 103,906.08, 155,928.16 and 38,242.08 is: 57,388.53
Step by Step Solution
- Step 1: Write the proportion equation
103,906.08 : 155,928.16 = 38,242.08 : x - Step 2: Convert to fraction form
103,906.08/155,928.16 = 38,242.08/x - Step 3: Cross multiply
103,906.08x = 155,928.16 × 38,242.08 - Step 4: Simplify right side
103,906.08x = 5,963,017,168.97 - Step 5: Solve for x
x = 5,963,017,168.97/103,906.08 - Step 6: Final answer
x = 57,388.53
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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.