Finding the Fourth Proportional to 134,489.20, 201,733.80 and 127,577.20
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Solution
The fourth proportional to 134,489.20, 201,733.80 and 127,577.20 is: 191,365.80
Step by Step Solution
- Step 1: Write the proportion equation
134,489.20 : 201,733.80 = 127,577.20 : x - Step 2: Convert to fraction form
134,489.20/201,733.80 = 127,577.20/x - Step 3: Cross multiply
134,489.20x = 201,733.80 × 127,577.20 - Step 4: Simplify right side
134,489.20x = 25,736,633,349.36 - Step 5: Solve for x
x = 25,736,633,349.36/134,489.20 - Step 6: Final answer
x = 191,365.80
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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.