Finding the Fourth Proportional to 145,874.32, 201,206.64 and 89,313.68
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Solution
The fourth proportional to 145,874.32, 201,206.64 and 89,313.68 is: 123,191.70
Step by Step Solution
- Step 1: Write the proportion equation
145,874.32 : 201,206.64 = 89,313.68 : x - Step 2: Convert to fraction form
145,874.32/201,206.64 = 89,313.68/x - Step 3: Cross multiply
145,874.32x = 201,206.64 × 89,313.68 - Step 4: Simplify right side
145,874.32x = 17,970,505,458.84 - Step 5: Solve for x
x = 17,970,505,458.84/145,874.32 - Step 6: Final answer
x = 123,191.70
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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.