Finding the Fourth Proportional to 145,767.09, 201,157.69 and 82,125.39
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Solution
The fourth proportional to 145,767.09, 201,157.69 and 82,125.39 is: 113,332.53
Step by Step Solution
- Step 1: Write the proportion equation
145,767.09 : 201,157.69 = 82,125.39 : x - Step 2: Convert to fraction form
145,767.09/201,157.69 = 82,125.39/x - Step 3: Cross multiply
145,767.09x = 201,157.69 × 82,125.39 - Step 4: Simplify right side
145,767.09x = 16,520,153,742.75 - Step 5: Solve for x
x = 16,520,153,742.75/145,767.09 - Step 6: Final answer
x = 113,332.53
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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.