Finding the Fourth Proportional to 145,884.96, 201,317.64 and 81,365.73
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Solution
The fourth proportional to 145,884.96, 201,317.64 and 81,365.73 is: 112,282.69
Step by Step Solution
- Step 1: Write the proportion equation
145,884.96 : 201,317.64 = 81,365.73 : x - Step 2: Convert to fraction form
145,884.96/201,317.64 = 81,365.73/x - Step 3: Cross multiply
145,884.96x = 201,317.64 × 81,365.73 - Step 4: Simplify right side
145,884.96x = 16,380,355,680.41 - Step 5: Solve for x
x = 16,380,355,680.41/145,884.96 - Step 6: Final answer
x = 112,282.69
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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.