Finding the Fourth Proportional to 134,892.80, 202,505.60 and 84,972.80
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Solution
The fourth proportional to 134,892.80, 202,505.60 and 84,972.80 is: 127,564.02
Step by Step Solution
- Step 1: Write the proportion equation
134,892.80 : 202,505.60 = 84,972.80 : x - Step 2: Convert to fraction form
134,892.80/202,505.60 = 84,972.80/x - Step 3: Cross multiply
134,892.80x = 202,505.60 × 84,972.80 - Step 4: Simplify right side
134,892.80x = 17,207,467,847.68 - Step 5: Solve for x
x = 17,207,467,847.68/134,892.80 - Step 6: Final answer
x = 127,564.02
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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.