Finding the Fourth Proportional to 127,130.64, 190,691.35 and 38,381.84
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Solution
The fourth proportional to 127,130.64, 190,691.35 and 38,381.84 is: 57,571.37
Step by Step Solution
- Step 1: Write the proportion equation
127,130.64 : 190,691.35 = 38,381.84 : x - Step 2: Convert to fraction form
127,130.64/190,691.35 = 38,381.84/x - Step 3: Cross multiply
127,130.64x = 190,691.35 × 38,381.84 - Step 4: Simplify right side
127,130.64x = 7,319,084,550.77 - Step 5: Solve for x
x = 7,319,084,550.77/127,130.64 - Step 6: Final answer
x = 57,571.37
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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.